As global temperatures rise, the ecology of Antarctica is already changing, but Earth's climate would have to change drastically before the continent could support agriculture and permanent settlers.

"This planet could play a pivotal role in future missions... to search for biosignatures indicating potential life, " Dr.

Antarctica is likely to be the world's only habitable continent by the end of this century if global warming remains unchecked, the Government's chief scientist, Professor Sir David King ...

About 99% of Earth is uninhabitable; in deep underground places with high pressure and temperature, even the toughest ...