Due to the complexity of the weather and climate systems, their predictability on the short term and the construction of possible scenarios on the long term are heavily dependent on the level of knowledge of the potential forcing agents and the possible action of amplifying processes.

In the case of the Earth, space forcing from the e.g. the Sun has still to be definitely ascertained in a quantitative way as well as other more debated agents such as galactic cosmic rays, not considered yet as a potential forcing due to a poor understanding of their potential role despite that interesting indications come from the analysis of the Earth palaeoclimate.

Similar considerations hold for the non-terrestrial planetary environments, whose weather and climate are known to a lesser level of detail.

Hence, space weather and space climate agents certainly deserve a deep analysis in order to define their role as potential concurrent drivers of the Earth and planets climate and weather.

The aim of this session is to provide a framework for reviewing the state-of-the-art on these issues and to identify possible interrelationships between Earth and planets and Space Meteorology by assessing the level of coupling in the acting physical systems and processes.

Authors are invited to submit abstracts dealing with one ore more of the following topics relevant to space sources of potential Earth and planets weather and climate forcing agents, and to the analysis of their time evolution and signatures on terrestrial and planetary records of climate and palaeoclimate: - Solar electromagnetic emission; - Solar Wind; - Solar Cosmic Rays; - Galactic Cosmic Rays; - Ultra-High Energy Gamma Ray Bursts. The session will be featuring oral and poster presentations.

It is planned to publish the relevant papers in a special issue of the peer-reviewed online "Journal of Space Weather and Space Climate" (EDPS, Paris; http://www.swsc-journal.org/).