Sessions of special interest for Media

This page lists sessions, selected by the EGU press officer, that could be of interest to journalists taking part in the General Assembly. They were selected because they include one or more abstracts featuring potentially newsworthy research.

US – Union Symposia

US3 Media|ECS

Over the whole Earth history, the climate has encountered tipping points, shifting from one regulated system to the other. This tilting motion affects both climate and the carbon cycle and has played a major role in the evolution of the Earth climate, at all timescales. Earth History has been ponctuated by large climate changes and carbon cycle reorganizations, from large climate variations occurring in deep times (snowball events, terrestrialisation, Mesozoic and early Cenozoic warm episodes, quaternary glacial cycles…) to past and on-going abrupt events. Many potential triggers of those climate and carbon cycle shifts have been proposed and tested through modeling studies, and against field data, such as those directly or indirectly linked with tectonics (plate motion, orogenesis, opening/closing of seaways, weathering…) and orbital forcing. Given that the Earth climate is currently experiencing an unprecedented transition under anthropogenic pressure, understanding the mechanisms behind the scene is crucial.

Our aim is to point out the most recent results concerning how a complex system as the climate of the Earth has undergone many tipping points and what is the specificity of the future climate changes. Therefore, within this session, we would like to encourage talks discussing advances in our record and modeling of the forces triggering and amplifying the changes of Earth climate and carbon cycle across spatial and temporal scales.

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Convener: Gilles Ramstein | Co-conveners: Ayako Abe-Ouchi, Richard Betts, Robert DeConto
Orals
| Fri, 12 Apr, 14:00–15:45, 16:15–18:00
 
Room E1

GDB – Great Debates

GDB1 Media

In October 2018, the IPCC published its special report on impacts of global warming of 1.5 deg C. Another recent, highly publicised study suggests that the planet could pass an irreversible threshold into a so called “Hothouse Earth” state for a temperature increase of as low as 2 degrees C above pre-industrial temperatures, while other studies and commentaries have emphasised the urgency on climate action, arguing that 2020 must be a turning point for global fossil fuel emissions, to increase the chance of maintaining a safe operating space for the humans on the planet. In 2018, the IPCC celebrated its 30th anniversary. The importance of taking action on human-induced climate change has been emphasised with governments around the world since the 1990s yet CO2 concentrations continue to rise and international initiatives have, to date, had limited and insufficient impact to avert some of the most serious consequences of climate change.
How close are we to one or more critical thresholds (cliff edge)? Is there time to avert passing one or more of these thresholds? What can the geoscience community do to reduce the risks? How important is bottom up versus top down action to ensuring the least worst outcome? These are some of the questions we will debate with world experts in their field and authors of the thought papers on these topics.

Public information:
In October 2018, the IPCC published its special report on impacts of global warming of 1.5 deg C. Another recent, highly publicised study suggests that the planet could pass an irreversible threshold into a so called “Hothouse Earth” state for a temperature increase of as low as 2 degrees C above pre-industrial temperatures.

In 2018, the IPCC celebrated its 30th anniversary. The importance of taking action on human-induced climate change has been emphasised with governments around the world since the 1990s yet CO2 concentrations continue to rise and international initiatives have, to date, had limited and insufficient impact to avert some of the most serious consequences of climate change that may pose an existential threat to modern civilisation.

How close are we to one or more critical thresholds? Is there time to avert passing one or more of them? What can the geoscience community do to reduce the risks? How important is bottom up versus top down action to ensuring the least worst outcome? These are some of the questions we will debate with world experts in their field and authors of the thought papers on these topics.

The Great Debate panellists are:
Prof. Myles Allen is Professor of Geosystem Science in the Environmental Change Institute, University of Oxford. His research focuses on how human and natural influences on climate contribute to observed climate change and risks of extreme weather and in quantifying their implications for long-range climate forecasts. He was a Coordinating Lead Author on the Intergovernmental Panel on Climate Change Special Report on 1.5 degrees, having served on the IPCC’s 3rd, 4th and 5th Assessments, including the Synthesis Report Core Writing Team in 2014.

Prof. Sabine Fuss, Mercator Research Institute on Global Commons and Climate Change (MCC), Berlin. Sabine is an economist, currently leading a working group at the MCC. She holds a professorship on Sustainable Resource Management and Global Change at Humboldt University of Berlin. Her research interests are in sustainable development, land use change and climate change mitigation. She has been an IPCC Lead Author for the Special Report on 1.5°C global warming, serves on the steering committee of the Global Carbon Project and is a guest scholar at the International Institute for Applied Systems Analysis.

Erica Hope leads the cross-sectoral ‘2050 Task Force’ and governance programme of the European Climate Foundation (ECF) in Brussels, which seeks to build knowledge, political strategies and coalitions to drive the transition to a zero emissions society by mid-century. Erica has previously worked for the energy efficiency and UK programmes of the ECF, and before that led the policy and advocacy activities of NGO network Climate Action Network Europe on energy efficiency. From 2005-2009 she was researcher to Green MEP Caroline Lucas, and has also worked at the Institute for Public Policy Research in London.

Prof. Linda Steg is professor of environmental psychology at the University of Groningen. She studies factors influencing sustainable behaviour, the effects and acceptability of strategies aimed at promoting sustainable behaviour, and public perceptions of technology and system changes. She is member of Member of the Royal Netherlands Academy of Sciences (KNAW), and lead author of the IPCC special report on 1.5°C and AR6. She works on various interdisciplinary and international research programmes, and collaborates with practitioners working in industry, governments and NGOs.

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Convener: Jonathan Bamber | Co-conveners: Alberto Montanari, Didier Roche
Thu, 11 Apr, 10:45–12:30
 
Room E1
GDB5 Media

Public information:
Plan S, devised by a coalition of research funders with support from the European Commission and European Research Council, demands that by January 1, 2020 research supported by participating funders must be published in Open Access journals. Representatives from subscription-based and Open Access publishers, architects of Plan S, and researchers affected by it will debate questions surrounding the implementation of the plan and its consequences.

The panelists are David Sweeney, Heike Langenberg, Marc Schiltz and Brooks Hanson. They will present the case for and against mandatory OA followed by an open debate with questions and comments from the audience.

David Sweeney is Executive Chair of Research England, the biggest research funder in the UK. He has been invited to visit many countries to advise on research assessment and funding, particularly with respect to research impact. He is also co-chair of the Implementation Task Force for Plan S, the international initiative on full and immediate open access to research publications.

Heike Langenberg is the Chief Editor of Nature Geoscience. She started her editorial career in 1999 as an Associate, then Senior Editor at Nature handling manuscripts in the broad area of climate sciences. In 2007 she moved to Nature Geoscience to launch the journal in January 2008. A graduate in mathematics of the Philipps-Universität Marburg, Germany, she ventured into oceanography for her PhD at the University of Hamburg. Her postdoctoral research at various research institutes in Hamburg was focused on numerical simulations of the ocean and atmosphere at a regional scale.

Marc Schiltz is president of Science Europe, the European association of all major national public research funding and research performing organisations. In this role, he has contributed to setting the European agenda to foster Open Science and is one of the architects of Plan S. He is also leading the Luxembourg National Research Fund. He is a relentless advocate of science and research, serving on a number of external boards and committees, both at the national and international level. Having received a PhD in Crystallography from the University of Paris-Sud and an executive MBA from INSEAD, Marc has been active in research and higher education for more than 25 years and held research and faculty positions in several European countries.

Brooks Hanson is the Executive Vice President for Science for the American Geophysical Union (AGU), responsible for AGU’s publications, meetings, ethics and data programs, and Thriving Earth Exchange. He previously acted as Sr. Vice President for Publications at AGU, where he was responsible for AGU's portfolio of books and 21 journals and served as Deputy Editor for Physical Sciences at Science. Brooks received a Ph.D. in Geology from UCLA and held a post-doctoral appointment at the Department of Mineral Sciences at the Smithsonian Institution.

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Convener: Katja Fennel | Co-convener: Jonathan Bamber
Tue, 09 Apr, 16:15–18:00
 
Room E1

SCS – Science and Society

SCS2 Media|ECS

Plastic pollution is recognized as one of the most serious and urgent problems facing our planet. Rates of manufacture, use and ultimately disposal of plastics continue to soar, posing an enormous threat to the planet’s oceans and rivers and the flora and fauna they support. There is an urgent need for global action, backed by sound scientific understanding, to tackle this problem.

This Union Symposium will address the problems posed to our planet by plastic pollution, and examine options for dealing with the threat.

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Co-organized as HS1.2.13/OS4.36
Convener: Jessica Hickie | Co-conveners: Bruce Newport, Christopher Hackney, David Todd, Tim van Emmerik
Orals
| Mon, 08 Apr, 14:00–17:45
 
Room E1
SCS1 Media|ECS

Wed, 10 Apr, 12:45-14:00 / Room E1

Public information:
The dialogue between scientists, institutions, policymakers and the general public is widely recognised as an essential step towards a fair and sustainable society. Nowadays, more than ever in human history, international cooperation is an essential requirement for protecting the planet, advancing science and ensuring an equitable development of the global economy.
Despite its importance, the above dialogue can be a challenge for scientists, who often cannot find a productive connection with governments and politicians. Scientific associations are a key link between researchers and policy makers, as they have the potential to establish a durable and profitable connection with institutions.
The EGU elected the dialogue with society as one of its priority missions. At its General Assembly, the EGU is launching an innovative symposium format, Science and Society (SCS), to host scientific forums specifically dedicated to connecting with high-level institutions and engaging the public and policymakers.
The conversation with Ilaria Capua and Mario Monti will focus on science and politics with a global perspective, and the impact of populism on European integrity and therefore scientific research. The discussion will elaborate on optimal strategies to deliver topical and clear scientific messages to key institutions.
Ilaria Capua is a virologist best known for her research on influenza viruses and her efforts promoting open access to genetic information on emerging viruses. In 2006, Science reported on Capua’s effort towards open access science, stating that she had “renewed the debate about how to balance global health against scientists’ needs to publish and countries’ demands for secrecy". She has been a member of the Italian parliament from 2013 to 2016 and a fake news victim. She is currently a full professor at the University of Florida in Gainesville, Florida, US, and director of the UF One Health Center of Excellence.
Mario Monti served as a European Commissioner from 1995 to 2004, with responsibility for the internal market, services, customs, taxation and competition. He was Prime Minister of Italy from 2011 to 2013, leading a government of national unity to cope with the Italian debt crisis. Monti has also been Rector and is currently President of Bocconi University in Milan. His publications deal mainly with monetary and financial economics, public finance, European integration, competition policy. He is currently lifetime member of the Italian Senate.
During the conversation, Ilaria Capua and Mario Monti will present their vision with two 15-minute talks that will be followed by 20 minutes dedicated to questions from the audience and answers.

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Co-organized as EOS/ESSI/G6.6/GD/HS1.2.12
Conveners: Alberto Montanari, Jonathan Bamber
Wed, 10 Apr, 12:45–14:00
 
Room E1

EOS – Education and Outreach Sessions

ITS3.1/SSS1.4/EOS3.2/BG1.21/ESSI3.8/HS11.32/NH9.22 Media

Citizen science (the involvement of the public in scientific processes) is gaining momentum in one discipline after another, thereby more and more data on biodiversity, earthquakes, weather, climate, health issues among others are being collected at different scales that can extend the frontiers of knowledge. Successful citizen observatories can potentially be scaled up in order to contribute to larger environmental and policy strategies and actions (such as the European Earth Observation monitoring systems) and to be integrated in GEOSS and Copernicus. Making credible contributions to science can empower citizens to actively participate in environmental decision making, can raise awareness about environmental issues and can help bridge the science-society gap. Often, citizen science is seen in the context of Open Science, which is a broad movement embracing Open Data, Open Access, Open Educational Resources, Open Source, Open Methodology, and Open Peer Review to transparently publish and share scientific research - thus leveraging Citizen Science and Reproducible Research.

Both, open science in general and citizen science in particular, pose great challenges for researchers, and to support the goals of the various openness initiatives, this session looks at what is possible nowadays and what is ready for application in geosciences. Success stories, failures, best practices and solutions will be presented, in addition to various related networks. We aim to show how researchers, citizens, funding agencies, governments and other stakeholders can benefit from citizen science and open science, acknowledging the drawbacks and highlighting the opportunities available for geoscientists.

In this session, we are looking for successful approaches of working with citizen science and open science to bridge the gap between a multitude of stakeholders in research, policy, economy, practice and society at large by finding emerging environmental issues and empowering citizens. This session shall be an open space to exchange experiences and to present either successful examples or failed efforts. Learning from others and understanding what to adopt and what to change help the participants in their own undertakings and new initiatives, so that they become future success stories.

We want to ask and find answers to the following questions:
Which approaches can be used in Earth, Planetary and Space Sciences?
What are the biggest challenges and how to overcome them?
What kind of citizen scientist involvement and open science strategies exist?
How to ensure transparency in project results and analyses?
How to evaluate successful bridging of the science-society-gap?

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Co-organized as SSS1.4/EOS3.2/BG1.21/ESSI3.8/HS11.32/NH9.22
Convener: Taru Sandén | Co-conveners: Daniel Dörler, Steffen Fritz, Florian Heigl, Amanda Whitehurst, Martin Hammitzsch
Orals
| Fri, 12 Apr, 08:30–12:30
 
Room N1
Posters
| Attendance Fri, 12 Apr, 14:00–15:45
 
Hall X1
ITS3.3/NH9.18/EOS4.4/HS11.20 | PICO Media

Natural hazards and the associated risk are in some cases a major hindrance to economic and social growth in economically developing countries. This is particularly evident for urban areas, since rapid and uncontrolled urbanization in hazard-prone regions may result in a significant increase in risk due to insufficient spatial planning, which sometimes does not correctly consider (if at all) the impact of natural hazards, and to inadequate building practices. This session will profile the challenges faced in the developing world when doing assessments of natural hazard and risk and designing mitigation strategies. Examples of these challenges include (i) a frequent lack of data, along with difficulties in collecting it, (ii) rapid and often unplanned urban development, with building practices often neglecting the potential hazards, (iii) less regulated nature-human interactions, (iv) limited resources and capacity to undertake the most appropriate prevention and mitigation actions and to actually respond to disastrous and extreme events, (v) climate change, and (vi) difficulties in communication between science, policy and decision makers, and the general public.
Submissions to this PICO session covering all relevant topics are welcome, including but not limited to: database and archive construction; modeling, monitoring and tools for natural hazard and risk assessment; conceptual understanding of multi-hazards and nature-technology interactions; response and mitigation strategies; and communications, policy and decision-making. We particularly welcome abstracts focusing on urban areas, as well as the participation of stakeholders to share their innovative theoretical and practical ideas and success stories of how risk can be understood and addressed across economically developing countries.

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Co-organized as NH9.18/EOS4.4/HS11.20
Convener: Faith Taylor | Co-conveners: Olivier Dewitte, Joel Gill, Andreas Günther, Bruce D. Malamud
PICOs
| Fri, 12 Apr, 14:00–15:45
 
PICO spot 4
ITS6.4/BG1.29/EOS7.3/AS4.52/CL2.27/HS10.13/SSS13.30 Media

Cities all over the world are facing rising population densities. This leads to increasing fractions of built-up and sealed areas, consequencing in a more and more altered and partly disrupted water balance - both in terms of water quantities and qualities. On top, climate change is altering precipitation regimes.

This session focuses on according urban ecohydrological problems and approaches to solve them spanning from technical to nature-based solutions in different time and spatial scales from the building to the whole city.

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Co-organized as BG1.29/EOS7.3/AS4.52/CL2.27/HS10.13/SSS13.30
Convener: Thomas Nehls | Co-conveners: Simone Fatichi, Günter Langergraber, Gabriele Manoli, Athanasios Paschalis
Orals
| Tue, 09 Apr, 08:30–10:15, 10:45–12:30
 
Room N1
Posters
| Attendance Wed, 10 Apr, 10:45–12:30
 
Hall A
ITS1.2/GD1.5/EOS3.4/GI1.7/GM1.8/GMPV1.9/SSP1.10/TS12.3 Media|ECS

Geoscience witnessed a flurry of major breakthroughs in the 19th and 20th century, leading to major shifts in our understanding of the Earth system. Such breakthroughs included new concepts, such as plate tectonics and sequence stratigraphy, and new techniques, like radiometric dating and remote sensing. However, the pace of these discoveries has declined, raising the question of whether we have now made all of the key geoscience breakthroughs. Put another way, have we reached “Peak Geoscience” and are we now in a time of synthesis, incremental development and consolidation? Or are there new breakthroughs on the horizon? If so what will these developments be?

One key remaining challenge is the management of the inherent uncertainties in geoscience. Despite the importance of understanding uncertainty, it is often neglected by interpreters, geomodellers and experimentalists. With ever-more powerful computers and the advent of big data analytics and machine learning, our ability to quantify uncertainty in geological interpretation, models and experiments will be crucial.

This session aims to bring together those with an interest in the future of geoscience. We welcome contributions from any field of geoscience which either demonstrate a new, disruptive geoscience breakthrough or provide insights into where the next breakthrough will come. We encourage contributions associated with uncertainty in geoscience models and data, machine learning or big data analytics.

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Co-organized as GD1.5/EOS3.4/GI1.7/GM1.8/GMPV1.9/SSP1.10/TS12.3
Convener: Andrew Davies | Co-conveners: Juan Alcalde, Helen Cromie, Lucia Perez-Diaz
Orals
| Mon, 08 Apr, 16:15–18:00
 
Room N1
Posters
| Attendance Mon, 08 Apr, 10:45–12:30
 
Hall X2
ITS5.2/OS4.13/EOS10.2/BG3.18/GM6.6/HS11.63 Media

Plastic contamination has been reported in all realms of the environment from the tropics to the polar oceans. The consequences of this contamination may be severe for ecosystems and could adversely affect ecosystem services such as fisheries and even human health. Our poor knowledge of plastics sources, their composition, sizes, pathways, hot spots of accumulation and ultimate fate prevents an assessment of environmental risks and the development of appropriate mitigation strategies. In order to understand current distributions of plastics and the way they evolve in space and time, much better observations and common consistent measuring methods are required but simultaneously, observations must be combined with computational models from their sources on land to rivers, estuaries, oceans and sea ice. This requires improved standardized accurate observations and the development of advanced modelling capabilities to quantify and predict contamination levels.

The session aims to set up a forum for multi-disciplinary discussions to create a global picture of plastic contamination in the environment and to suggest approaches for future research, monitoring and mitigation of plastic pollutions impacts. The session will provide a framework to advise legislators and industry on the best ways to reduce the risks of serious damage from this contaminant.

This session will draw together data on plastic contamination across all sizes of plastics, from nano- and micro-plastics to large plastic fragments, and across all environments and locations. It will combine observations with state-of-the-art computational modelling to promote the fast advance of research and improve our understanding of how plastic pollution affects environments worldwide. We invite contributions on new methods and field observations, laboratory experiments, novel modelling approaches, related scientific initiatives and projects. New ideas for citizen-science involvement and for mitigation strategies to reduce plastic contamination of the environment are especially welcome.

Invited speaker: Prof. Dr. Erik van Sebille

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Co-organized as OS4.13/EOS10.2/BG3.18/GM6.6/HS11.63
Convener: Jörg-Olaf Wolff | Co-conveners: Richard Lampitt, Simon Dixon, Jessica Hickie, Alice Horton, Ilka Peeken, Anna Rubio, Stefanie Rynders
Orals
| Mon, 08 Apr, 08:30–12:30
 
Room N1
Posters
| Attendance Mon, 08 Apr, 16:15–18:00
 
Hall X4
EOS12.1 | PICO Media|ECS

It is becoming increasingly evident that both the scientific and the artist communities have a shared interest and responsibility in raising awareness of the limits to our planetary boundaries and the fragile stability and resilience of our Earth-System. In the past, this issue has been addressed mostly through traditional educational methods. However, there is mounting evidence that science-art collaborations can play a pivotal and vital role in this context by co-creating new ways of research and by stimulating the discussion by providing emotional and human context through the arts. This session, already in its fifth edition, has presented since interesting and progressive science-art collaborations across a number of disciplines, focused on presenting Earth sciences content. We have witnessed that climate change, natural hazards, meteorology, palaeontology, earthquakes, volcanoes and geology have been successfully presented through music, visual art, photography, theatre, literature, digital art, where the artists explored new practices and methods in their work with scientists but also where scientists have been inspired by artists in their research, and finally truly trans-disciplinary co-creation of Sci-Art work have emerged.

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Convener: Tiziana Lanza | Co-conveners: Louise Arnal, Francesco Mugnai, Sam Illingworth, Giuliana D'Addezio
PICOs
| Tue, 09 Apr, 16:15–18:00
 
PICO spot 5b
SCS1 Media|ECS

Wed, 10 Apr, 12:45-14:00 / Room E1

Public information:
The dialogue between scientists, institutions, policymakers and the general public is widely recognised as an essential step towards a fair and sustainable society. Nowadays, more than ever in human history, international cooperation is an essential requirement for protecting the planet, advancing science and ensuring an equitable development of the global economy.
Despite its importance, the above dialogue can be a challenge for scientists, who often cannot find a productive connection with governments and politicians. Scientific associations are a key link between researchers and policy makers, as they have the potential to establish a durable and profitable connection with institutions.
The EGU elected the dialogue with society as one of its priority missions. At its General Assembly, the EGU is launching an innovative symposium format, Science and Society (SCS), to host scientific forums specifically dedicated to connecting with high-level institutions and engaging the public and policymakers.
The conversation with Ilaria Capua and Mario Monti will focus on science and politics with a global perspective, and the impact of populism on European integrity and therefore scientific research. The discussion will elaborate on optimal strategies to deliver topical and clear scientific messages to key institutions.
Ilaria Capua is a virologist best known for her research on influenza viruses and her efforts promoting open access to genetic information on emerging viruses. In 2006, Science reported on Capua’s effort towards open access science, stating that she had “renewed the debate about how to balance global health against scientists’ needs to publish and countries’ demands for secrecy". She has been a member of the Italian parliament from 2013 to 2016 and a fake news victim. She is currently a full professor at the University of Florida in Gainesville, Florida, US, and director of the UF One Health Center of Excellence.
Mario Monti served as a European Commissioner from 1995 to 2004, with responsibility for the internal market, services, customs, taxation and competition. He was Prime Minister of Italy from 2011 to 2013, leading a government of national unity to cope with the Italian debt crisis. Monti has also been Rector and is currently President of Bocconi University in Milan. His publications deal mainly with monetary and financial economics, public finance, European integration, competition policy. He is currently lifetime member of the Italian Senate.
During the conversation, Ilaria Capua and Mario Monti will present their vision with two 15-minute talks that will be followed by 20 minutes dedicated to questions from the audience and answers.

Share:
Co-organized as EOS/ESSI/G6.6/GD/HS1.2.12
Conveners: Alberto Montanari, Jonathan Bamber
Wed, 10 Apr, 12:45–14:00
 
Room E1

ITS – Inter- and Transdisciplinary Sessions

ITS3.1/SSS1.4/EOS3.2/BG1.21/ESSI3.8/HS11.32/NH9.22 Media

Citizen science (the involvement of the public in scientific processes) is gaining momentum in one discipline after another, thereby more and more data on biodiversity, earthquakes, weather, climate, health issues among others are being collected at different scales that can extend the frontiers of knowledge. Successful citizen observatories can potentially be scaled up in order to contribute to larger environmental and policy strategies and actions (such as the European Earth Observation monitoring systems) and to be integrated in GEOSS and Copernicus. Making credible contributions to science can empower citizens to actively participate in environmental decision making, can raise awareness about environmental issues and can help bridge the science-society gap. Often, citizen science is seen in the context of Open Science, which is a broad movement embracing Open Data, Open Access, Open Educational Resources, Open Source, Open Methodology, and Open Peer Review to transparently publish and share scientific research - thus leveraging Citizen Science and Reproducible Research.

Both, open science in general and citizen science in particular, pose great challenges for researchers, and to support the goals of the various openness initiatives, this session looks at what is possible nowadays and what is ready for application in geosciences. Success stories, failures, best practices and solutions will be presented, in addition to various related networks. We aim to show how researchers, citizens, funding agencies, governments and other stakeholders can benefit from citizen science and open science, acknowledging the drawbacks and highlighting the opportunities available for geoscientists.

In this session, we are looking for successful approaches of working with citizen science and open science to bridge the gap between a multitude of stakeholders in research, policy, economy, practice and society at large by finding emerging environmental issues and empowering citizens. This session shall be an open space to exchange experiences and to present either successful examples or failed efforts. Learning from others and understanding what to adopt and what to change help the participants in their own undertakings and new initiatives, so that they become future success stories.

We want to ask and find answers to the following questions:
Which approaches can be used in Earth, Planetary and Space Sciences?
What are the biggest challenges and how to overcome them?
What kind of citizen scientist involvement and open science strategies exist?
How to ensure transparency in project results and analyses?
How to evaluate successful bridging of the science-society-gap?

Share:
Co-organized as SSS1.4/EOS3.2/BG1.21/ESSI3.8/HS11.32/NH9.22
Convener: Taru Sandén | Co-conveners: Daniel Dörler, Steffen Fritz, Florian Heigl, Amanda Whitehurst, Martin Hammitzsch
Orals
| Fri, 12 Apr, 08:30–12:30
 
Room N1
Posters
| Attendance Fri, 12 Apr, 14:00–15:45
 
Hall X1
ITS3.6/NH9.17 Media

Over the past decades, many initiatives have been produced to archive the losses and datasets associated with natural perils events (EM-DAT, MunichRe NATCATservice, SwissRe Sigma, CATDAT, Dartmouth Flood Observatory etc.). On a European scale, much research has also been undertaken on a Europe-wide, country and subcountry level either using Desinventar or through other academic and insurer data archiving. However, these loss databases provide varying levels of parameters, data completeness, quality checks, spatial integration, and spatiotemporal limits. In addition, the types of data collection and definitions of loss often differ greatly between databases.

With over 3000 Open Data Initiatives around Europe (www.europeandataportal.eu/) and the World, the amount of data freely available is increasing, but censoring and data checks are required in order to ensure that the quality is reasonable. This similarly goes for online media archives and loss reporting. Even though some initial attempts have been made to connect different databases and stimulate consistency and open access (e.g. IRDR-DATA), this is a topic that needs to be explored further.

This session aims to advance efforts on loss data collection and provide a future inventory of socioeconomic loss databases for loss and risk analysis as well as to create a community linking academia, government and insurance.

Abstracts are welcomed in the following fields:-
- Socioeconomic loss databases for natural perils
- Infrastructure and sectoral loss archiving
- Online media initiatives for collecting loss data (e.g. twitter)
- Post-disaster loss analysis
- Online analysis of loss data or loss reporting
- Parametric risk transfer products
- GIS integration of past natural hazards event data
- Open data efforts for loss modelling
- Insurance loss data and loss archives
- Government post-disaster loss analysis and loss databases
- Other relevant loss-related research

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Co-organized as NH9.17
Convener: James Daniell | Co-conveners: Jeroen Aerts, John K. Hillier, Gero Michel, Harriette Stone
Orals
| Thu, 11 Apr, 10:45–12:30
 
Room N1
Posters
| Attendance Thu, 11 Apr, 14:00–15:45
 
Hall X3
ITS3.3/NH9.18/EOS4.4/HS11.20 | PICO Media

Natural hazards and the associated risk are in some cases a major hindrance to economic and social growth in economically developing countries. This is particularly evident for urban areas, since rapid and uncontrolled urbanization in hazard-prone regions may result in a significant increase in risk due to insufficient spatial planning, which sometimes does not correctly consider (if at all) the impact of natural hazards, and to inadequate building practices. This session will profile the challenges faced in the developing world when doing assessments of natural hazard and risk and designing mitigation strategies. Examples of these challenges include (i) a frequent lack of data, along with difficulties in collecting it, (ii) rapid and often unplanned urban development, with building practices often neglecting the potential hazards, (iii) less regulated nature-human interactions, (iv) limited resources and capacity to undertake the most appropriate prevention and mitigation actions and to actually respond to disastrous and extreme events, (v) climate change, and (vi) difficulties in communication between science, policy and decision makers, and the general public.
Submissions to this PICO session covering all relevant topics are welcome, including but not limited to: database and archive construction; modeling, monitoring and tools for natural hazard and risk assessment; conceptual understanding of multi-hazards and nature-technology interactions; response and mitigation strategies; and communications, policy and decision-making. We particularly welcome abstracts focusing on urban areas, as well as the participation of stakeholders to share their innovative theoretical and practical ideas and success stories of how risk can be understood and addressed across economically developing countries.

Share:
Co-organized as NH9.18/EOS4.4/HS11.20
Convener: Faith Taylor | Co-conveners: Olivier Dewitte, Joel Gill, Andreas Günther, Bruce D. Malamud
PICOs
| Fri, 12 Apr, 14:00–15:45
 
PICO spot 4
ITS6.4/BG1.29/EOS7.3/AS4.52/CL2.27/HS10.13/SSS13.30 Media

Cities all over the world are facing rising population densities. This leads to increasing fractions of built-up and sealed areas, consequencing in a more and more altered and partly disrupted water balance - both in terms of water quantities and qualities. On top, climate change is altering precipitation regimes.

This session focuses on according urban ecohydrological problems and approaches to solve them spanning from technical to nature-based solutions in different time and spatial scales from the building to the whole city.

Share:
Co-organized as BG1.29/EOS7.3/AS4.52/CL2.27/HS10.13/SSS13.30
Convener: Thomas Nehls | Co-conveners: Simone Fatichi, Günter Langergraber, Gabriele Manoli, Athanasios Paschalis
Orals
| Tue, 09 Apr, 08:30–10:15, 10:45–12:30
 
Room N1
Posters
| Attendance Wed, 10 Apr, 10:45–12:30
 
Hall A
ITS1.2/GD1.5/EOS3.4/GI1.7/GM1.8/GMPV1.9/SSP1.10/TS12.3 Media|ECS

Geoscience witnessed a flurry of major breakthroughs in the 19th and 20th century, leading to major shifts in our understanding of the Earth system. Such breakthroughs included new concepts, such as plate tectonics and sequence stratigraphy, and new techniques, like radiometric dating and remote sensing. However, the pace of these discoveries has declined, raising the question of whether we have now made all of the key geoscience breakthroughs. Put another way, have we reached “Peak Geoscience” and are we now in a time of synthesis, incremental development and consolidation? Or are there new breakthroughs on the horizon? If so what will these developments be?

One key remaining challenge is the management of the inherent uncertainties in geoscience. Despite the importance of understanding uncertainty, it is often neglected by interpreters, geomodellers and experimentalists. With ever-more powerful computers and the advent of big data analytics and machine learning, our ability to quantify uncertainty in geological interpretation, models and experiments will be crucial.

This session aims to bring together those with an interest in the future of geoscience. We welcome contributions from any field of geoscience which either demonstrate a new, disruptive geoscience breakthrough or provide insights into where the next breakthrough will come. We encourage contributions associated with uncertainty in geoscience models and data, machine learning or big data analytics.

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Co-organized as GD1.5/EOS3.4/GI1.7/GM1.8/GMPV1.9/SSP1.10/TS12.3
Convener: Andrew Davies | Co-conveners: Juan Alcalde, Helen Cromie, Lucia Perez-Diaz
Orals
| Mon, 08 Apr, 16:15–18:00
 
Room N1
Posters
| Attendance Mon, 08 Apr, 10:45–12:30
 
Hall X2
ITS5.1/SSP2.1/CL3.01/GM6.7/SSS13.32 Media

The Anthropocene is a topic of broad and current interest that is being discussed across various disciplines, within Earth Sciences, but also in the humanities and in the media. Its significance and usefulness as the youngest epoch of the Geological Time Scale is examined by the Working Group of the Anthropocene of the Subcommission on Quaternary Stratigraphy, part of the International Commission on Stratigraphy. A multidisciplinary and transdisciplinary approach for investigating and discussing the Anthropocene is feasible, including not only various Earth Sciences disciplines such as stratigraphy, sedimentology, geochemistry and palaeontology, but also archaeology, geography, geomorphology and various disciplines of the humanities and the arts. This session invites transdisciplinary and interdisciplinary contributions on the significance, usefulness and application of the term, as well as case studies including proposals on possible GSSPs (Global Boundary Stratotype Section and Point) for a definition of the Anthropocene as part of the Geological Time Scale. The session will foster transdisciplinary dialogue and interdisciplinary cooperation and understanding on the scale and reach of anthropogenic changes within the Earth System.

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Co-organized as SSP2.1/CL3.01/GM6.7/SSS13.32
Convener: Michael Wagreich | Co-conveners: Katrin Hornek, Kira Lappé, Colin N. Waters, Jan Zalasiewicz
Orals
| Wed, 10 Apr, 16:15–18:00
 
Room N1
Posters
| Attendance Wed, 10 Apr, 14:00–15:45
 
Hall X1
ITS5.2/OS4.13/EOS10.2/BG3.18/GM6.6/HS11.63 Media

Plastic contamination has been reported in all realms of the environment from the tropics to the polar oceans. The consequences of this contamination may be severe for ecosystems and could adversely affect ecosystem services such as fisheries and even human health. Our poor knowledge of plastics sources, their composition, sizes, pathways, hot spots of accumulation and ultimate fate prevents an assessment of environmental risks and the development of appropriate mitigation strategies. In order to understand current distributions of plastics and the way they evolve in space and time, much better observations and common consistent measuring methods are required but simultaneously, observations must be combined with computational models from their sources on land to rivers, estuaries, oceans and sea ice. This requires improved standardized accurate observations and the development of advanced modelling capabilities to quantify and predict contamination levels.

The session aims to set up a forum for multi-disciplinary discussions to create a global picture of plastic contamination in the environment and to suggest approaches for future research, monitoring and mitigation of plastic pollutions impacts. The session will provide a framework to advise legislators and industry on the best ways to reduce the risks of serious damage from this contaminant.

This session will draw together data on plastic contamination across all sizes of plastics, from nano- and micro-plastics to large plastic fragments, and across all environments and locations. It will combine observations with state-of-the-art computational modelling to promote the fast advance of research and improve our understanding of how plastic pollution affects environments worldwide. We invite contributions on new methods and field observations, laboratory experiments, novel modelling approaches, related scientific initiatives and projects. New ideas for citizen-science involvement and for mitigation strategies to reduce plastic contamination of the environment are especially welcome.

Invited speaker: Prof. Dr. Erik van Sebille

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Co-organized as OS4.13/EOS10.2/BG3.18/GM6.6/HS11.63
Convener: Jörg-Olaf Wolff | Co-conveners: Richard Lampitt, Simon Dixon, Jessica Hickie, Alice Horton, Ilka Peeken, Anna Rubio, Stefanie Rynders
Orals
| Mon, 08 Apr, 08:30–12:30
 
Room N1
Posters
| Attendance Mon, 08 Apr, 16:15–18:00
 
Hall X4
ITS4.7/NH1.26/AS4.48/CL2.08/HS4.3.3/NP9.9 Media

The occurrence of extremes such as droughts, flash floods, hailstorms, storm surges and tropical storms can have significant and sometimes catastrophic consequences to society. However, not all low probability weather/climate events will lead to “high impacts” on human or natural systems or infrastructure. Rather, the severity of such events depend also intrinsically on the exposure, vulnerability and/or resilience to such hazards of affected systems, including emergency management procedures. Similarly, high impact events may be compounded by the interaction of several, e.g., in their own right less severe hydro-meteorological incidents, sometimes separated in time and space. Or they may similarly result from the joint failures of multiple human or natural systems. Consequently, it is a deep transdisciplinary challenge to learn from past high impact events, understand the mechanisms behind them and ultimately to project how they may potentially change in a future climate.

The ECRA (European Climate Research Alliance) Collaborative Programme on “High Impact Events and Climate Change” aims to promote research on the mechanisms behind high impact events and climate extremes, simulation of high impact events under present and future climatic conditions, and on how relevant information for climate risk analysis, vulnerability and adaptation may be co-created with users, e.g., in terms of tailored climate services. For this aim, this Interdisciplinary and Transdisciplinary Session invites contributions that will serve to (i) better understand the mechanisms behind high impact events from a transdisciplinary and interdisciplinary perspective, e.g. case studies and the assessment of past high impact events, including detection and attribution; (ii) project changes to high impact events through, e.g. high resolution climate and impacts modelling (including economic modelling); (iii) produce climate information at the relevant scales (downscaling); and co-create climate services with users to help deal with the risk and/or impacts of high-impact events, e.g. risk analysis and climate adaptation. Abstracts that highlight recent advances from a transdisciplinary perspective for example through the innovation of climate services will be particularly encouraged. Authors and contributors to this session will be offered to present their work in a Special Issue of the journal “Sustainability”.

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Co-organized as NH1.26/AS4.48/CL2.08/HS4.3.3/NP9.9
Convener: Martin Drews | Co-conveners: Peter Braesicke, Hilppa Gregow, Kristine S. Madsen
Orals
| Tue, 09 Apr, 14:00–15:45
 
Room L7
Posters
| Attendance Wed, 10 Apr, 14:00–15:45
 
Hall X3
ITS4.8/AS4.46/BG1.41/CL3.13/CR1.12/GM5.6 Media

The Tibetan Plateau and surrounding mountain regions, known as the Third Pole, cover an area of > 5 million km2 and are considered to be the water tower of Asia. The Pan Third Pole expands on both the north-south and the east-west directions, going across the Tibetan Plateau, Pamir, Hindu Kush, Iran Plateau, Caucasian and Carpathian, and covering an area of about 20 million km2. Like the Arctic and Antarctica, the Pan Third Pole’s environment is extremely sensitive to global climate change. In recent years, scientists from around the globe have increased observational, remote sensing and numerical modeling research related to the Pan Third Pole in an effort to quantify and predict past, current and future scenarios. Co-sponsored by TPE (www.tpe.ac.cn), this session is dedicated to studies of Pan Third Pole atmosphere, cryosphere, hydrosphere, and biosphere and their interactions with global change. Related contributions are welcomed.

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Co-organized as AS4.46/BG1.41/CL3.13/CR1.12/GM5.6
Convener: Yaoming Ma | Co-conveners: Fahu Chen, Franco Salerno, Bob Su, Fan Zhang
Orals
| Tue, 09 Apr, 08:30–10:15, 10:45–12:30
 
Room L7
Posters
| Attendance Wed, 10 Apr, 08:30–10:15
 
Hall X5
ITS4.2/CL4.21/HS11.21/OS2.11 Media

Climate change in the Mediterranean region poses critical environmental issues and can affect many sectors of human activities. Contrasting climate trends, levels of exposure and vulnerability are present across this region with associated potential conflicts. Climate research is expected to contribute an increasingly precise information on the future climate and impacts of climate change in this region. A large set of instrumental records and climate proxies allows in many areas of the Mediterranean region to bridge present trends and past climate over a wide range of timescales. This session encourages contributions adopting a multidisciplinary approach and it aims to promote a dialogue between climatologists and researchers interested on the impacts of climate on human and natural systems. It aims at including contributions describing new scientific findings on the climate of the Mediterranean region, its dynamics, variability, change, and studies of climate related impacts on societies and ecosystems. The session considers different time scales (from paleoclimate to future model projections), different components (atmosphere, ocean, land and its hydrology) and factors (chemical, biological, anthropic) as well as highlights of sub-regional hotspots and climate processes.

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Co-organized as CL4.21/HS11.21/OS2.11
Convener: Piero Lionello | Co-conveners: Andrea Toreti, Heidi Webber
Orals
| Tue, 09 Apr, 16:15–18:00
 
Room L7
Posters
| Attendance Wed, 10 Apr, 14:00–15:45
 
Hall X5
ITS4.6/CL3.09/ERE1.7/NH1.39 Media

Estimating the impact of climate change on both the natural and socio-economic environment plays an important role in informing a range of national and international policies, including energy, agriculture and health. Understanding these impacts, and those avoided, has never been more pertinent since the adoption of the 2015 Paris Agreement, which sought to hold “the increase in the global average temperature to well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5°C, recognizing that this would significantly reduce the risks and impacts of climate change".

Policies may aim to mitigate (i.e. reduce emissions), counteract (i.e. negative emissions) and/or adapt to anthropogenic climate change and it is equally important to quantify the impact of implementing these options. While rapid, deep mitigation is clearly a pre-requisite to success, delays to such measures imply a greater reliance upon large scale negative emissions technologies. Those based on land are likely to face competing pressure from wide ranging economic activity, and knowledge of these interactions and synergies is limited. Similarly while adaptation options are wide ranging, the uses of nature-based solutions, which often provide mitigation co-benefits and are often highly cost effective, are under-researched and rarely integrated into overall natural hazard or climate change risk management strategies.

Furthermore, the methods used to evaluate impact in the climate context are many and varied, including empirical, econometric and process-based. These methods continue to evolve implying that the assessment of impact may depend upon the analytical approach chosen.

This inter- and transdisciplinary session aims to draw together scientists, developing climate-impact evaluation methods, evaluating the impact (or avoided impact) of anthropogenic climate change upon natural and socio-economic environments, investigating the potential for mitigation and counteraction options to reduce long term risk, and studying the value of multiple adaptation options to stakeholders when planning how to manage vulnerability.

Invited speaker: Sonia Seneviratne

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Co-organized as CL3.09/ERE1.7/NH1.39
Convener: Luke Jackson | Co-conveners: Paul Hudson, Dann Mitchell, Fabian Stenzel
Orals
| Wed, 10 Apr, 14:00–18:00
 
Room L7
Posters
| Attendance Thu, 11 Apr, 10:45–12:30
 
Hall X5

AS – Atmospheric Sciences

GDB1 Media

In October 2018, the IPCC published its special report on impacts of global warming of 1.5 deg C. Another recent, highly publicised study suggests that the planet could pass an irreversible threshold into a so called “Hothouse Earth” state for a temperature increase of as low as 2 degrees C above pre-industrial temperatures, while other studies and commentaries have emphasised the urgency on climate action, arguing that 2020 must be a turning point for global fossil fuel emissions, to increase the chance of maintaining a safe operating space for the humans on the planet. In 2018, the IPCC celebrated its 30th anniversary. The importance of taking action on human-induced climate change has been emphasised with governments around the world since the 1990s yet CO2 concentrations continue to rise and international initiatives have, to date, had limited and insufficient impact to avert some of the most serious consequences of climate change.
How close are we to one or more critical thresholds (cliff edge)? Is there time to avert passing one or more of these thresholds? What can the geoscience community do to reduce the risks? How important is bottom up versus top down action to ensuring the least worst outcome? These are some of the questions we will debate with world experts in their field and authors of the thought papers on these topics.

Public information:
In October 2018, the IPCC published its special report on impacts of global warming of 1.5 deg C. Another recent, highly publicised study suggests that the planet could pass an irreversible threshold into a so called “Hothouse Earth” state for a temperature increase of as low as 2 degrees C above pre-industrial temperatures.

In 2018, the IPCC celebrated its 30th anniversary. The importance of taking action on human-induced climate change has been emphasised with governments around the world since the 1990s yet CO2 concentrations continue to rise and international initiatives have, to date, had limited and insufficient impact to avert some of the most serious consequences of climate change that may pose an existential threat to modern civilisation.

How close are we to one or more critical thresholds? Is there time to avert passing one or more of them? What can the geoscience community do to reduce the risks? How important is bottom up versus top down action to ensuring the least worst outcome? These are some of the questions we will debate with world experts in their field and authors of the thought papers on these topics.

The Great Debate panellists are:
Prof. Myles Allen is Professor of Geosystem Science in the Environmental Change Institute, University of Oxford. His research focuses on how human and natural influences on climate contribute to observed climate change and risks of extreme weather and in quantifying their implications for long-range climate forecasts. He was a Coordinating Lead Author on the Intergovernmental Panel on Climate Change Special Report on 1.5 degrees, having served on the IPCC’s 3rd, 4th and 5th Assessments, including the Synthesis Report Core Writing Team in 2014.

Prof. Sabine Fuss, Mercator Research Institute on Global Commons and Climate Change (MCC), Berlin. Sabine is an economist, currently leading a working group at the MCC. She holds a professorship on Sustainable Resource Management and Global Change at Humboldt University of Berlin. Her research interests are in sustainable development, land use change and climate change mitigation. She has been an IPCC Lead Author for the Special Report on 1.5°C global warming, serves on the steering committee of the Global Carbon Project and is a guest scholar at the International Institute for Applied Systems Analysis.

Erica Hope leads the cross-sectoral ‘2050 Task Force’ and governance programme of the European Climate Foundation (ECF) in Brussels, which seeks to build knowledge, political strategies and coalitions to drive the transition to a zero emissions society by mid-century. Erica has previously worked for the energy efficiency and UK programmes of the ECF, and before that led the policy and advocacy activities of NGO network Climate Action Network Europe on energy efficiency. From 2005-2009 she was researcher to Green MEP Caroline Lucas, and has also worked at the Institute for Public Policy Research in London.

Prof. Linda Steg is professor of environmental psychology at the University of Groningen. She studies factors influencing sustainable behaviour, the effects and acceptability of strategies aimed at promoting sustainable behaviour, and public perceptions of technology and system changes. She is member of Member of the Royal Netherlands Academy of Sciences (KNAW), and lead author of the IPCC special report on 1.5°C and AR6. She works on various interdisciplinary and international research programmes, and collaborates with practitioners working in industry, governments and NGOs.

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Convener: Jonathan Bamber | Co-conveners: Alberto Montanari, Didier Roche
Thu, 11 Apr, 10:45–12:30
 
Room E1
SCS2 Media|ECS

Plastic pollution is recognized as one of the most serious and urgent problems facing our planet. Rates of manufacture, use and ultimately disposal of plastics continue to soar, posing an enormous threat to the planet’s oceans and rivers and the flora and fauna they support. There is an urgent need for global action, backed by sound scientific understanding, to tackle this problem.

This Union Symposium will address the problems posed to our planet by plastic pollution, and examine options for dealing with the threat.

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Co-organized as HS1.2.13/OS4.36
Convener: Jessica Hickie | Co-conveners: Bruce Newport, Christopher Hackney, David Todd, Tim van Emmerik
Orals
| Mon, 08 Apr, 14:00–17:45
 
Room E1
US3 Media|ECS

Over the whole Earth history, the climate has encountered tipping points, shifting from one regulated system to the other. This tilting motion affects both climate and the carbon cycle and has played a major role in the evolution of the Earth climate, at all timescales. Earth History has been ponctuated by large climate changes and carbon cycle reorganizations, from large climate variations occurring in deep times (snowball events, terrestrialisation, Mesozoic and early Cenozoic warm episodes, quaternary glacial cycles…) to past and on-going abrupt events. Many potential triggers of those climate and carbon cycle shifts have been proposed and tested through modeling studies, and against field data, such as those directly or indirectly linked with tectonics (plate motion, orogenesis, opening/closing of seaways, weathering…) and orbital forcing. Given that the Earth climate is currently experiencing an unprecedented transition under anthropogenic pressure, understanding the mechanisms behind the scene is crucial.

Our aim is to point out the most recent results concerning how a complex system as the climate of the Earth has undergone many tipping points and what is the specificity of the future climate changes. Therefore, within this session, we would like to encourage talks discussing advances in our record and modeling of the forces triggering and amplifying the changes of Earth climate and carbon cycle across spatial and temporal scales.

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Convener: Gilles Ramstein | Co-conveners: Ayako Abe-Ouchi, Richard Betts, Robert DeConto
Orals
| Fri, 12 Apr, 14:00–15:45, 16:15–18:00
 
Room E1
AS3.15 Media

The aim of this general session is to bring together the scientific community within air pollution modelling. The focus is ongoing research, new results and current problems related to the field of modelling the atmospheric transport and transformation on global, regional and local scales.

All presentations covering the research area of air pollution modelling are welcome, including recent model developments, applications and evaluations, physical and chemical parameterisations, process understanding, model testing, evaluation and uncertainty estimates, emissions, numerical methods, model systems and integration, forecasting, event-studies, scenarios, ensembles, assessment, etc.

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Convener: Jørgen Brandt | Co-conveners: Ulas Im, Nikos Daskalakis, Pedro Jimenez-Guerrero, Andrea Pozzer
Orals
| Tue, 09 Apr, 16:15–18:00
 
Room F1, Wed, 10 Apr, 08:30–12:30
 
Room F1
Posters
| Attendance Tue, 09 Apr, 14:00–15:45
 
Hall X5
AS3.18 Media

Cities are hotspots for the emissions of air pollutants and greenhouse gases from traffic, industries, household heating and energy production. Air pollution impacts are episodic and often co-occur with heat waves and allergenic pollen release. Greenhouse gases are often co-emitted with air pollutants. Urban air quality and the effect of policy measures are a challenge to monitor with traditional fixed stations or with models, because of the extreme variability in the cities’ geometry and emission patterns.
This session intends to bring together researchers of urban air quality and greenhouse gases and will accept submissions of topics related to urban air quality, heat stress, and air pollution impacts including health. The presentations focus on new developments in the field of ground and satellite observations, process modelling, data merging and downscaling related to urban air quality. Topics include sensor networks, personal monitoring, observations from space and UAV’s, high spatial and temporal resolution model approaches, downscaling, source apportionment, optical properties, atmospheric processes, mechanisms for air quality deterioration, community and personal exposure quantification and air pollution effects. Air pollution species may include anthropogenic and biogenic ones, including greenhouse gases and allergenic pollen, their isotopes and concentration ratios.

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Convener: Michiel van der Molen | Co-conveners: Dominik Brunner, Ulrike Dusek, Ru-Jin Huang, Felix Vogel
Orals
| Mon, 08 Apr, 08:30–12:30, 14:00–15:45
 
Room F1
Posters
| Attendance Mon, 08 Apr, 16:15–18:00
 
Hall X5
AS4.20 Media

The interaction of processes between the land surface, the planetary boundary layer (PBL), and the free troposphere are crucial for the understanding of weather and climate including extremes such as heavy precipitation and droughts. This requires an advanced understanding and modeling of the exchange of momentum, water, energy, and carbon at interfaces. In this session, we present and discuss current research activities contributing to this understanding, including L-A interaction and feedback to the diurnal cycle of the PBL, clouds, and precipitation as well as surface fluxes such as evapotranspiration and entrainment. We accept observational and modeling approaches to address these challenges. With respect to the observations, emphasis is put on the application of new sensor synergies, e.g., using active remote sensing for studying land surface exchange processes and entrainment at the PBL top, which have been addressed in field campaigns. With respect to theoretical understanding and modeling, we are focusing on new insights by feedback diagrams and grey zone experiments down to the large eddy simulation scale.

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Co-organized as BG1.16/CL4.29/HS11.28
Convener: Volker Wulfmeyer | Co-conveners: Wim Thiery, Matthias Mauder, Linda Schlemmer, Chiel van Heerwaarden, Diego G. Miralles, Adriaan J. (Ryan) Teuling, Sonia I. Seneviratne
Orals
| Tue, 09 Apr, 16:15–18:00
 
Room 0.11
Posters
| Attendance Wed, 10 Apr, 16:15–18:00
 
Hall X5
ITS6.4/BG1.29/EOS7.3/AS4.52/CL2.27/HS10.13/SSS13.30 Media

Cities all over the world are facing rising population densities. This leads to increasing fractions of built-up and sealed areas, consequencing in a more and more altered and partly disrupted water balance - both in terms of water quantities and qualities. On top, climate change is altering precipitation regimes.

This session focuses on according urban ecohydrological problems and approaches to solve them spanning from technical to nature-based solutions in different time and spatial scales from the building to the whole city.

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Co-organized as BG1.29/EOS7.3/AS4.52/CL2.27/HS10.13/SSS13.30
Convener: Thomas Nehls | Co-conveners: Simone Fatichi, Günter Langergraber, Gabriele Manoli, Athanasios Paschalis
Orals
| Tue, 09 Apr, 08:30–10:15, 10:45–12:30
 
Room N1
Posters
| Attendance Wed, 10 Apr, 10:45–12:30
 
Hall A
GI3.6 Media

'Cosmic rays’ collectively describe particles that bombard the Earth from space. They carry information about space and, once near the Earth, interact with the magnetosphere, atmosphere, hydrosphere and lithosphere. Secondary cosmic rays created within the atmosphere can provide information about our planet that is vital to science and society. Secondary neutron radiation plays an extraordinary role, as it not only carries information about solar activity, but also produces short and long living tracer isotopes, influences genetic information of living organisms, and is extraordinarily sensitive to hydrogen and therefore also to water. Given the vast spectrum of interactions of cosmic rays with matter in different parts of the Earth, cosmic-ray research ranges from studies of the solar system to the history of the Earth, and from health and security issues to hydrology and climate change.

Although research on cosmic-ray particles is connected to a variety of disciplines and applications, they all share similar questions and problems regarding the physics of detection, modeling, and environmental factors that influence the intensity. Questions that all disciplines have in common are, for example, “How does the cosmic-ray intensity and energy spectra change with time and location on Earth?”, “How to correct the signal for magnetospheric or atmospheric fluctuations?”, “What is the influence of local structures, water bodies, and surface conditions?”, “Which computer model for cosmic-ray propagation is correct?”, or “What can we learn from other types of cosmic-ray particles?”.

The session brings together scientists from all fields of research that are related to monitoring and modeling of cosmogenic radiation. It will allow sharing of expertise amongst international researchers as well as showcase recent advancements in their field. The session aims to stimulate discussions about how individual disciplines can share their knowledge and benefit from each other.

We solicit contributions related but not limited to:
- Health, security, and radiation protection: cosmic-ray dosimetry on Earth and its dependence on environmental and atmospheric factors
- Planetary space science: satellite and ground-based neutron and gamma-ray sensors to detect water and soil chemistry
- Neutron monitor research: detection of high-energy cosmic rays variations and its dependence on local and atmospheric factors
- Hydrology and climate change: low-energy neutron sensing to measure water in reservoirs at and near the land surface, such as soils, snow pack and vegetation
- Cosmogenic nuclides: as tracers of atmospheric circulation and mixing; as a tool in archaeology or glaciology for dating of ice and measuring ablation rates; and as a tool for surface exposure dating and measuring rates of surficial geological processes
- Detector design: technological advancements for the detection of cosmic rays
- Cosmic-ray modeling: advances in modeling of the cosmic-ray propagation through the magnetosphere and atmosphere, and their response to the Earth’s surface
- Impact modeling: How can cosmic-ray monitoring support environmental models, weather and climate forecasting, irrigation management, and the assessment of natural hazards

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Co-organized as AS4.55/EMRP2.41/HS11.18/NH11.14/PS4.6/ST4.8
Convener: Martin Schrön | Co-conveners: Konstantin Herbst, Markus Köhli, W. Rühm, Marek Zreda
Orals
| Wed, 10 Apr, 16:15–18:00
 
Room -2.47
Posters
| Attendance Wed, 10 Apr, 14:00–15:45
 
Hall X1
NH1.2 Media

Lightning is the energetic manifestation of electrical breakdown, occurring after charge separation processes operating on micro and macro-scales, leading to strong electric fields within thunderstorms. Lightning is associated with severe weather, torrential rains and flash floods. It has significant effects on various atmospheric layers and drives the fair-weather electric field. It is a strong indicator of convective processes on regional and global scales, potentially associated with climate change. Thunderstorms and lightning are also associated to the production of energetic radiation up to tens of MeV on time scales from sub-millisecond (Terrestrial Gamma-ray Flashes) to tens of seconds (gamma-ray glows).

This session seeks contributions from research in atmospheric electricity on:

Atmospheric electricity in fair weather and the global electrical circuit
Atmospheric chemical effects of lightning and LtNOx
Middle atmospheric Transient Luminous Events
Energetic radiation from thunderstorms and lightning.
Remote sensing of lightning from space and by lightning detection networks
Results from the Atmosphere-Space Interaction Monitor (ASIM) mission.
Thunderstorms, flash floods and severe weather
Lightning and climate
Modeling of thunderstorms and lightning
Now-casting and forecasting of thunderstorms
New airborne and ground-based observation techniques

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Co-organized as AS1.29, co-sponsored by AGU-ASE
Convener: Yoav Yair | Co-conveners: R.Giles Harrison, Martino Marisaldi, Serge Soula, Yukihiro Takahashi
Orals
| Wed, 10 Apr, 08:30–12:30, 14:00–18:00
 
Room L6, Thu, 11 Apr, 08:30–10:15
 
Room L6
Posters
| Attendance Thu, 11 Apr, 10:45–12:30
 
Hall X3
NH1.9 | PICO Media

Heat extremes are already one of the deadliest meteorological events and they are projected to increase in intensity and frequency due to rising CO2 emissions. Thus the risk these events pose to society may increase dramatically and society will need to adapt if the worst impacts are to be avoided. However, uncertainties for understanding the development of extreme heat episodes and their impacts remain large. This session therefore aims to address this challenge, welcoming research which improves our understanding of extreme heat events and how to respond to them. Suitable contributions in this regard may: (i) assess the drivers and underlying processes of extreme heat in observations and models; (ii) explore the diverse socio-economic impacts of extreme heat events (for example, on aspects relating to human health or economic productivity); (iii) address forecasting of extreme heat at seasonal to sub-seasonal time scales; (iv) focus on societal adaptation to extreme heat, including (but not limited to) the implementation of Heat-Health Early Warning Systems.

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Co-organized as AS4.31
Convener: Tom Matthews | Co-conveners: Ana Casanueva, Colin Raymond, Martha Marie Vogel
PICOs
| Mon, 08 Apr, 10:45–12:30
 
PICO spot 1
ITS4.7/NH1.26/AS4.48/CL2.08/HS4.3.3/NP9.9 Media

The occurrence of extremes such as droughts, flash floods, hailstorms, storm surges and tropical storms can have significant and sometimes catastrophic consequences to society. However, not all low probability weather/climate events will lead to “high impacts” on human or natural systems or infrastructure. Rather, the severity of such events depend also intrinsically on the exposure, vulnerability and/or resilience to such hazards of affected systems, including emergency management procedures. Similarly, high impact events may be compounded by the interaction of several, e.g., in their own right less severe hydro-meteorological incidents, sometimes separated in time and space. Or they may similarly result from the joint failures of multiple human or natural systems. Consequently, it is a deep transdisciplinary challenge to learn from past high impact events, understand the mechanisms behind them and ultimately to project how they may potentially change in a future climate.

The ECRA (European Climate Research Alliance) Collaborative Programme on “High Impact Events and Climate Change” aims to promote research on the mechanisms behind high impact events and climate extremes, simulation of high impact events under present and future climatic conditions, and on how relevant information for climate risk analysis, vulnerability and adaptation may be co-created with users, e.g., in terms of tailored climate services. For this aim, this Interdisciplinary and Transdisciplinary Session invites contributions that will serve to (i) better understand the mechanisms behind high impact events from a transdisciplinary and interdisciplinary perspective, e.g. case studies and the assessment of past high impact events, including detection and attribution; (ii) project changes to high impact events through, e.g. high resolution climate and impacts modelling (including economic modelling); (iii) produce climate information at the relevant scales (downscaling); and co-create climate services with users to help deal with the risk and/or impacts of high-impact events, e.g. risk analysis and climate adaptation. Abstracts that highlight recent advances from a transdisciplinary perspective for example through the innovation of climate services will be particularly encouraged. Authors and contributors to this session will be offered to present their work in a Special Issue of the journal “Sustainability”.

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Co-organized as NH1.26/AS4.48/CL2.08/HS4.3.3/NP9.9
Convener: Martin Drews | Co-conveners: Peter Braesicke, Hilppa Gregow, Kristine S. Madsen
Orals
| Tue, 09 Apr, 14:00–15:45
 
Room L7
Posters
| Attendance Wed, 10 Apr, 14:00–15:45
 
Hall X3
ITS4.8/AS4.46/BG1.41/CL3.13/CR1.12/GM5.6 Media

The Tibetan Plateau and surrounding mountain regions, known as the Third Pole, cover an area of > 5 million km2 and are considered to be the water tower of Asia. The Pan Third Pole expands on both the north-south and the east-west directions, going across the Tibetan Plateau, Pamir, Hindu Kush, Iran Plateau, Caucasian and Carpathian, and covering an area of about 20 million km2. Like the Arctic and Antarctica, the Pan Third Pole’s environment is extremely sensitive to global climate change. In recent years, scientists from around the globe have increased observational, remote sensing and numerical modeling research related to the Pan Third Pole in an effort to quantify and predict past, current and future scenarios. Co-sponsored by TPE (www.tpe.ac.cn), this session is dedicated to studies of Pan Third Pole atmosphere, cryosphere, hydrosphere, and biosphere and their interactions with global change. Related contributions are welcomed.

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Co-organized as AS4.46/BG1.41/CL3.13/CR1.12/GM5.6
Convener: Yaoming Ma | Co-conveners: Fahu Chen, Franco Salerno, Bob Su, Fan Zhang
Orals
| Tue, 09 Apr, 08:30–10:15, 10:45–12:30
 
Room L7
Posters
| Attendance Wed, 10 Apr, 08:30–10:15
 
Hall X5
PS1.4 Media

The InSight mission to Mars landed in Elysium Planitia on November 26. InSight's scientific objective is the study of the Martian interior using two seismometers, a heat flow probe and geodetical measurements. Auxiliary instruments will collect meteorological and magnetic data for at least one Martian year.
This session provides initial results from Mars, status reports of instrument deployment and relevant pre-landing science.

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Co-organized as AS4.60/EMRP2.33/GD9.3/GMPV7.13/SM1.5/TS1.7
Convener: Simon C. Stähler | Co-conveners: Brigitte Knapmeyer-Endrun, Anna Mittelholz, Ana-Catalina Plesa
Orals
| Thu, 11 Apr, 14:00–18:00
 
Room L3, Fri, 12 Apr, 08:30–10:15
 
Room L3
Posters
| Attendance Fri, 12 Apr, 10:45–12:30
 
Hall X4
BG1.57 Media

Fire is a global phenomenon influencing ecosystem functioning, carbon stocks and fluxes, and atmospheric composition, with large impacts on human health, safety and economy. The relative importance of climate, vegetation and humans as drivers of fire activity varies across spatial and temporal scales. Multiscale and interdisciplinary assessments of fire behavior are required to understand global climate-fire feedbacks, as well as regional interactions between vegetation and humans, and fire.
Fire influences the global carbon cycle among others through its carbon emissions and post-fire ecosystem carbon sequestration. In addition, black carbon (also known as pyrogenic carbon, charcoal, soot) is a crucial component in the carbon cycle, yet uncertainties remain regarding sizes, losses and fluxes between land, rivers, oceans and atmosphere.
Remote sensing provides baseline information for all stakeholders involved in monitoring of biomass burning at different scales and for understanding how ecosystems respond to fires. However, there are still large uncertainties in satellite-based active fire, burned area, and fire emissions estimates, in part due to the complexity and diversity of the ecosystems affected. Building on the environmental significance and scientific challenges described above, this session will bring together fire scientists working on biomass burning monitoring and early warning systems. The aim of this session is to improve the understanding of interactions between fire, vegetation, carbon, climate and humans. We invite contributions developing or using remote sensing datasets, in situ observations, charcoal records, laboratory experiments and modeling approaches. We welcome studies that help to improve our understanding of (1) the relative importance of climate, vegetation and humans on fire occurrence across spatial and temporal scales (2) the impacts of fire on vegetation, atmosphere and society, (3) feedbacks between fire, vegetation and climate, and (4) the role of fire in the carbon cycle, with special focus on the transfer of black carbon and other fire markers from terrestrial ecosystems to aquatic environments, and their biogeochemical fate in these environments, (5) innovative use of remote sensing technologies (LIDAR, infrared cameras, drones) for fuel characterization, fire detection and monitoring; (6) algorithms/models applicable to regional-to-global scale fire analyses exploring active fire detection and characterization (e.g., fire radiative power, area affected, combustion phase), burned area mapping, atmospheric emissions and smoke transport, (7) fire product validation and error assessment, (8) analytical tools designed to enhance situational awareness among fire practitioners and early warning systems, addressing specific needs of operational fire behavior modeling.

Invited speakers:
Emilio Chuvieco, University of Alcala
Elena Kukavskaya, Sukachev Institute of Forest, Russian Academy of Sciences

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Co-organized as AS4.45/NH1.38
Convener: Sander Veraverbeke | Co-conveners: Renata Libonati, Gitta Lasslop, Duarte Oom, Ioannis Bistinas, Alysha Inez Coppola, Angelica Feurdean, Carrie Masiello
Orals
| Fri, 12 Apr, 10:45–12:30
 
Room 2.44
Posters
| Attendance Fri, 12 Apr, 14:00–15:45
 
Hall A
CL4.16.2 Media

Tipping elements in the Earth's climate system are continental-scale subsystems that are characterized by a threshold behavior. It has been suggested that these include biosphere components (e.g. the Amazon rainforest and coral reefs), cryosphere components (e.g. the Greenland and Antarctic ice sheets) and large-scale atmospheric and oceanic circulations (e.g. the thermohaline circulation, ENSO and Indian summer monsoon). Once operating near a threshold or tipping point, these components can transgress into a qualitatively different state by small external perturbations. The large-scale environmental consequences could impact the livelihoods of millions of people.

In this session, we aim to bring together experts presenting and discussing the state-of-the-art research on tipping elements in the Earth's climate system, both in empirical data and numerical modelling of past, present and future climate. Among other topics, issues to be addressed in this session include critical thresholds for specific tipping elements, typical time scales of tipping, interactions and feedbacks between tipping elements, the potential for tipping cascades as well as environmental and socio-economic impacts of tipping.

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Co-organized as AS4.64/BG1.69/CR1.15/NP1.7/OS1.35
Convener: Ricarda Winkelmann | Co-conveners: Victor Brovkin, Henk A. Dijkstra, Jonathan Donges, Timothy Lenton
Orals
| Tue, 09 Apr, 14:00–18:00
 
Room 0.49
Posters
| Attendance Tue, 09 Apr, 10:45–12:30
 
Hall X5
AS1.18 Media

This session invites contributions on all aspects of dynamical meteorology, especially into the investigation of mid-latitude cyclone and storms on both hemispheres. The session focuses on predictability of mid-latitude, tropical and polar weather systems, including cyclones at different stages of their life cycles from the initial development, to the large-scale and synoptic-scale conditions. Factors influencing cyclone growth to a severe storm, up to their dissipation are investigated from dynamical as well as climatological perspectives. This session will focus on all aspects of cyclone activity (including their impacts) and mid-latitude dynamical meteorology, particularly inviting results from recent field campaigns.
One goal of the session is to bring researchers together from different areas of expertise and backgrounds: researchers from dynamic-climatological perspectives and end-users and practitioners from impact based research and applications (e.g. financial sector, insurance industry).

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Convener: Gregor C. Leckebusch | Co-conveners: Joaquim G. Pinto, Uwe Ulbrich, Helen Dacre, Julian Quinting, Victoria Sinclair
Orals
| Tue, 09 Apr, 14:00–18:00
 
Room L3
Posters
| Attendance Tue, 09 Apr, 10:45–12:30
 
Hall X5
GDB5 Media

Public information:
Plan S, devised by a coalition of research funders with support from the European Commission and European Research Council, demands that by January 1, 2020 research supported by participating funders must be published in Open Access journals. Representatives from subscription-based and Open Access publishers, architects of Plan S, and researchers affected by it will debate questions surrounding the implementation of the plan and its consequences.

The panelists are David Sweeney, Heike Langenberg, Marc Schiltz and Brooks Hanson. They will present the case for and against mandatory OA followed by an open debate with questions and comments from the audience.

David Sweeney is Executive Chair of Research England, the biggest research funder in the UK. He has been invited to visit many countries to advise on research assessment and funding, particularly with respect to research impact. He is also co-chair of the Implementation Task Force for Plan S, the international initiative on full and immediate open access to research publications.

Heike Langenberg is the Chief Editor of Nature Geoscience. She started her editorial career in 1999 as an Associate, then Senior Editor at Nature handling manuscripts in the broad area of climate sciences. In 2007 she moved to Nature Geoscience to launch the journal in January 2008. A graduate in mathematics of the Philipps-Universität Marburg, Germany, she ventured into oceanography for her PhD at the University of Hamburg. Her postdoctoral research at various research institutes in Hamburg was focused on numerical simulations of the ocean and atmosphere at a regional scale.

Marc Schiltz is president of Science Europe, the European association of all major national public research funding and research performing organisations. In this role, he has contributed to setting the European agenda to foster Open Science and is one of the architects of Plan S. He is also leading the Luxembourg National Research Fund. He is a relentless advocate of science and research, serving on a number of external boards and committees, both at the national and international level. Having received a PhD in Crystallography from the University of Paris-Sud and an executive MBA from INSEAD, Marc has been active in research and higher education for more than 25 years and held research and faculty positions in several European countries.

Brooks Hanson is the Executive Vice President for Science for the American Geophysical Union (AGU), responsible for AGU’s publications, meetings, ethics and data programs, and Thriving Earth Exchange. He previously acted as Sr. Vice President for Publications at AGU, where he was responsible for AGU's portfolio of books and 21 journals and served as Deputy Editor for Physical Sciences at Science. Brooks received a Ph.D. in Geology from UCLA and held a post-doctoral appointment at the Department of Mineral Sciences at the Smithsonian Institution.

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Convener: Katja Fennel | Co-convener: Jonathan Bamber
Tue, 09 Apr, 16:15–18:00
 
Room E1
SCS1 Media|ECS

Wed, 10 Apr, 12:45-14:00 / Room E1

Public information:
The dialogue between scientists, institutions, policymakers and the general public is widely recognised as an essential step towards a fair and sustainable society. Nowadays, more than ever in human history, international cooperation is an essential requirement for protecting the planet, advancing science and ensuring an equitable development of the global economy.
Despite its importance, the above dialogue can be a challenge for scientists, who often cannot find a productive connection with governments and politicians. Scientific associations are a key link between researchers and policy makers, as they have the potential to establish a durable and profitable connection with institutions.
The EGU elected the dialogue with society as one of its priority missions. At its General Assembly, the EGU is launching an innovative symposium format, Science and Society (SCS), to host scientific forums specifically dedicated to connecting with high-level institutions and engaging the public and policymakers.
The conversation with Ilaria Capua and Mario Monti will focus on science and politics with a global perspective, and the impact of populism on European integrity and therefore scientific research. The discussion will elaborate on optimal strategies to deliver topical and clear scientific messages to key institutions.
Ilaria Capua is a virologist best known for her research on influenza viruses and her efforts promoting open access to genetic information on emerging viruses. In 2006, Science reported on Capua’s effort towards open access science, stating that she had “renewed the debate about how to balance global health against scientists’ needs to publish and countries’ demands for secrecy". She has been a member of the Italian parliament from 2013 to 2016 and a fake news victim. She is currently a full professor at the University of Florida in Gainesville, Florida, US, and director of the UF One Health Center of Excellence.
Mario Monti served as a European Commissioner from 1995 to 2004, with responsibility for the internal market, services, customs, taxation and competition. He was Prime Minister of Italy from 2011 to 2013, leading a government of national unity to cope with the Italian debt crisis. Monti has also been Rector and is currently President of Bocconi University in Milan. His publications deal mainly with monetary and financial economics, public finance, European integration, competition policy. He is currently lifetime member of the Italian Senate.
During the conversation, Ilaria Capua and Mario Monti will present their vision with two 15-minute talks that will be followed by 20 minutes dedicated to questions from the audience and answers.

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Co-organized as EOS/ESSI/G6.6/GD/HS1.2.12
Conveners: Alberto Montanari, Jonathan Bamber
Wed, 10 Apr, 12:45–14:00
 
Room E1

BG – Biogeosciences

GI4.4 Media

Progressively stricter requirements in geophysical prospecting, in urban and inter-urban monitoring make it important to look continuously for innovative solutions to new and old complex problems. In particular, investigation and monitoring of pollution, hydrological resources, energy efficiency, cultural heritage, cities and transportation infrastructures nowadays require technological and methodological innovations of geophysical and sensing techniques in order to properly understand the limits of the current state of art and to identify where possible the most convenient strategies to overcome limitations of current approaches. This goal can be achieved either with more advanced solutions in a general sense or with dedicated solutions, particularly suitable for the specific problem at hand.
Integrated prospecting, refined data processing, new models, hardware innovations, new ICT information and telecommunications systems can and should cooperate with each other in this sense. It is important that the scientific community finds a moment for considering the connection between adjacent aspects of the same problem, e.g. to achieve improved geophysical data, safe and reliable environmental and structural monitoring, improved processing as much as possible.
The session “ Innovative instrumentations, techniques, geophysical methods and models for near surface geophysics, cities and transportation infrastructures aims to propose one such moment, where multidisciplinary and interdisciplinary competences can interact with each other, possibly finding possible new ways to cooperate and to exchange experiences reciprocally to reach sustainable solutions.

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Co-organized as BG1.13/EMRP2.30/HS11.27/NH11.3/SSS12.10
Convener: Raffaele Persico | Co-conveners: Mario Marchetti, Salvatore Piro, F.C. Ponzo
Orals
| Fri, 12 Apr, 08:30–10:15
 
Room M1
Posters
| Attendance Fri, 12 Apr, 10:45–12:30
 
Hall X1
GDB1 Media

In October 2018, the IPCC published its special report on impacts of global warming of 1.5 deg C. Another recent, highly publicised study suggests that the planet could pass an irreversible threshold into a so called “Hothouse Earth” state for a temperature increase of as low as 2 degrees C above pre-industrial temperatures, while other studies and commentaries have emphasised the urgency on climate action, arguing that 2020 must be a turning point for global fossil fuel emissions, to increase the chance of maintaining a safe operating space for the humans on the planet. In 2018, the IPCC celebrated its 30th anniversary. The importance of taking action on human-induced climate change has been emphasised with governments around the world since the 1990s yet CO2 concentrations continue to rise and international initiatives have, to date, had limited and insufficient impact to avert some of the most serious consequences of climate change.
How close are we to one or more critical thresholds (cliff edge)? Is there time to avert passing one or more of these thresholds? What can the geoscience community do to reduce the risks? How important is bottom up versus top down action to ensuring the least worst outcome? These are some of the questions we will debate with world experts in their field and authors of the thought papers on these topics.

Public information:
In October 2018, the IPCC published its special report on impacts of global warming of 1.5 deg C. Another recent, highly publicised study suggests that the planet could pass an irreversible threshold into a so called “Hothouse Earth” state for a temperature increase of as low as 2 degrees C above pre-industrial temperatures.

In 2018, the IPCC celebrated its 30th anniversary. The importance of taking action on human-induced climate change has been emphasised with governments around the world since the 1990s yet CO2 concentrations continue to rise and international initiatives have, to date, had limited and insufficient impact to avert some of the most serious consequences of climate change that may pose an existential threat to modern civilisation.

How close are we to one or more critical thresholds? Is there time to avert passing one or more of them? What can the geoscience community do to reduce the risks? How important is bottom up versus top down action to ensuring the least worst outcome? These are some of the questions we will debate with world experts in their field and authors of the thought papers on these topics.

The Great Debate panellists are:
Prof. Myles Allen is Professor of Geosystem Science in the Environmental Change Institute, University of Oxford. His research focuses on how human and natural influences on climate contribute to observed climate change and risks of extreme weather and in quantifying their implications for long-range climate forecasts. He was a Coordinating Lead Author on the Intergovernmental Panel on Climate Change Special Report on 1.5 degrees, having served on the IPCC’s 3rd, 4th and 5th Assessments, including the Synthesis Report Core Writing Team in 2014.

Prof. Sabine Fuss, Mercator Research Institute on Global Commons and Climate Change (MCC), Berlin. Sabine is an economist, currently leading a working group at the MCC. She holds a professorship on Sustainable Resource Management and Global Change at Humboldt University of Berlin. Her research interests are in sustainable development, land use change and climate change mitigation. She has been an IPCC Lead Author for the Special Report on 1.5°C global warming, serves on the steering committee of the Global Carbon Project and is a guest scholar at the International Institute for Applied Systems Analysis.

Erica Hope leads the cross-sectoral ‘2050 Task Force’ and governance programme of the European Climate Foundation (ECF) in Brussels, which seeks to build knowledge, political strategies and coalitions to drive the transition to a zero emissions society by mid-century. Erica has previously worked for the energy efficiency and UK programmes of the ECF, and before that led the policy and advocacy activities of NGO network Climate Action Network Europe on energy efficiency. From 2005-2009 she was researcher to Green MEP Caroline Lucas, and has also worked at the Institute for Public Policy Research in London.

Prof. Linda Steg is professor of environmental psychology at the University of Groningen. She studies factors influencing sustainable behaviour, the effects and acceptability of strategies aimed at promoting sustainable behaviour, and public perceptions of technology and system changes. She is member of Member of the Royal Netherlands Academy of Sciences (KNAW), and lead author of the IPCC special report on 1.5°C and AR6. She works on various interdisciplinary and international research programmes, and collaborates with practitioners working in industry, governments and NGOs.

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Convener: Jonathan Bamber | Co-conveners: Alberto Montanari, Didier Roche
Thu, 11 Apr, 10:45–12:30
 
Room E1
SCS2 Media|ECS

Plastic pollution is recognized as one of the most serious and urgent problems facing our planet. Rates of manufacture, use and ultimately disposal of plastics continue to soar, posing an enormous threat to the planet’s oceans and rivers and the flora and fauna they support. There is an urgent need for global action, backed by sound scientific understanding, to tackle this problem.

This Union Symposium will address the problems posed to our planet by plastic pollution, and examine options for dealing with the threat.

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Co-organized as HS1.2.13/OS4.36
Convener: Jessica Hickie | Co-conveners: Bruce Newport, Christopher Hackney, David Todd, Tim van Emmerik
Orals
| Mon, 08 Apr, 14:00–17:45
 
Room E1
US3 Media|ECS

Over the whole Earth history, the climate has encountered tipping points, shifting from one regulated system to the other. This tilting motion affects both climate and the carbon cycle and has played a major role in the evolution of the Earth climate, at all timescales. Earth History has been ponctuated by large climate changes and carbon cycle reorganizations, from large climate variations occurring in deep times (snowball events, terrestrialisation, Mesozoic and early Cenozoic warm episodes, quaternary glacial cycles…) to past and on-going abrupt events. Many potential triggers of those climate and carbon cycle shifts have been proposed and tested through modeling studies, and against field data, such as those directly or indirectly linked with tectonics (plate motion, orogenesis, opening/closing of seaways, weathering…) and orbital forcing. Given that the Earth climate is currently experiencing an unprecedented transition under anthropogenic pressure, understanding the mechanisms behind the scene is crucial.

Our aim is to point out the most recent results concerning how a complex system as the climate of the Earth has undergone many tipping points and what is the specificity of the future climate changes. Therefore, within this session, we would like to encourage talks discussing advances in our record and modeling of the forces triggering and amplifying the changes of Earth climate and carbon cycle across spatial and temporal scales.

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Convener: Gilles Ramstein | Co-conveners: Ayako Abe-Ouchi, Richard Betts, Robert DeConto
Orals
| Fri, 12 Apr, 14:00–15:45, 16:15–18:00
 
Room E1
OS3.4 Media

Due to the growing pressures on marine natural resources and the ecosystem services demand, the interest of scientific and politic world is moving to ensure the conservation of marine ecosystems and environmental sustainable development of anthropogenic activities. Recently the principal European policies meet these issues, focusing on maintaining/ reaching the good environmental status (GES) of water bodies (WFD/MSFD) and solving the conflicts between anthropogenic pressures and marine ecosystems (MSP).
Some of the anthropogenic activities could have a potential impact on marine environment altering the marine ecosystems equilibrium. Since the dynamical processes influence the pollutants dispersion, it is compelling to analyse the ecosystems status through the study of abiotic variables distribution at proper spatial and temporal resolution.
From this perspective a large amount of data obtained by global observation systems (e.g. GOOS, EMODNET…) is needed to properly analyse the environmental quality both in the coastal and open ocean areas.
The session focuses on marine ecosystems, abiotic and biotic factors affecting their dynamics, highlighting the effects of anthropogenic impacts.
The following topics will be discussed: quantitative analysis of the effects of pollution on biota considering their natural and anthropogenic sources; benthic and pelagic community dynamics; economic evaluation of natural capital.
In this session multidisciplinary approaches using data coming from multiple sources (mathematical model, in-situ and remote observations) are encouraged.
Studies regarding the marine strategy descriptors, with the aim to develop methods, technologies and best practices to maintain/restore biodiversity and to guarantee a sustainable marine resources use, are also welcome.

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Co-organized as BG3.11
Convener: Marco Marcelli | Co-conveners: Paola Del Negro, Markus Weinbauer
Orals
| Tue, 09 Apr, 08:30–10:15
 
Room 1.85
Posters
| Attendance Tue, 09 Apr, 14:00–15:45
 
Hall X4
AS4.20 Media

The interaction of processes between the land surface, the planetary boundary layer (PBL), and the free troposphere are crucial for the understanding of weather and climate including extremes such as heavy precipitation and droughts. This requires an advanced understanding and modeling of the exchange of momentum, water, energy, and carbon at interfaces. In this session, we present and discuss current research activities contributing to this understanding, including L-A interaction and feedback to the diurnal cycle of the PBL, clouds, and precipitation as well as surface fluxes such as evapotranspiration and entrainment. We accept observational and modeling approaches to address these challenges. With respect to the observations, emphasis is put on the application of new sensor synergies, e.g., using active remote sensing for studying land surface exchange processes and entrainment at the PBL top, which have been addressed in field campaigns. With respect to theoretical understanding and modeling, we are focusing on new insights by feedback diagrams and grey zone experiments down to the large eddy simulation scale.

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Co-organized as BG1.16/CL4.29/HS11.28
Convener: Volker Wulfmeyer | Co-conveners: Wim Thiery, Matthias Mauder