Quote Originally Posted by Buffalobiian View Post
Also, about the premises. If all the ice in the poles melted we'd still have some land left, right?
Assuming no other apocalyptic events happened like nuclear war for remaining of land, meteor bombardment, ice age, etc, or all of above. Those that escaped into space assumed that Earth was beyond recovery to point that they didn't bother to actually map their way out of their solar system so that someday they might attempt to recover it. What surprises me is that they managed to travel between stars almost instantaneous and they aren't able to terraform a planet, not to mention to find a livable one.