Planetary atmospheres are complex and evolving entities, as mankind is rapidly coming to realise whilst attempting to understand, forecast and mitigate human-induced climate change. In the Solar System, our neighbours Venus and Mars provide striking examples of two endpoints of planetary evolution, runaway greenhouse and loss of atmosphere to space.

The variety of extra-solar planets brings a wider angle to the issue: from scorching 'hot jupiters' to ocean worlds, exoatmospheres explore many configurations unknown in the Solar System, such as iron clouds, silicate rains, extreme plate tectonics, and steam volcanoes. Exoplanetary atmospheres have recently become accessible to observations.

Conference themes:

• Extra-Solar planets
  Atmosphere and circulation models of hot gas giants
  The atmosphere-interior connection
   
• Solar System planets
  Comparative planetology, Mars, Venus, Earth, Titan
   
• Bridging the Gap
  Applying GCM to exoplanets, toy models, ocean planets,
  Super-Earths and lava worlds, formation of atmospheres
   
• Living atmospheres
  Habitability, atmosphere-life co-evolution, Earth as a system,
  Climate change