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.

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

Friday, 12 April 2019 | Room E1

Chairperson: Robert DeConto
14:15–14:45 |
Yves Godderis, Pierre Maffre, Yannick Donnadieu, Guillaume Le Hir, and Sébastien Carretier
14:45–15:15 |
Nicholas Swanson-Hysell, Francis A. Macdonald, Yuem Park, Yves Godderis, Lorraine E. Lisiecki, and Oliver Jagoutz
15:15–15:45 |
Florence Colleoni, Laura De Santis, and Andrea Bergamasco
Coffee break
Chairperson: Richard Betts
16:30–17:00 |
Andrey Ganopolski
17:00–17:30 |
Kerim Nisancioglu, Chuncheng Guo, and Mari Jensen
17:30–18:00 |
| Highlight
Ricarda Winkelmann