Antarctica

Antarctica is a large, ice-covered continent at the very south of Terra and the only one not naturally inhabited by humans. It is infamous for its hostile climate and extreme remoteness.

Red Mars
The first 100 train for their mission on the Ares at McMurdo Station.

Green Mars
At the end of Green Mars, a previously unknown chain of submerged volcanoes erupts underneath West Antarctica in 2127. Melting much of the ice cap and causing giant tsunamis, floods, storms and extreme weather of all over Terra. This destabilizes many governments allowing for a revolution on Mars to begin and triggers a major refugee wave heading for Mars.