[theseadroid]

Say if we suddenly realize earth is going to be unsuitable for all life forms in a year. What would we do? I would fire as many rockets as possible to Mars, carrying all kind of life forms on earth, and hope a few of them will survive and possibly evolve to Mars' environment.

[emiliobumachar]

Even all-out nuclear war would leave the Earth far more habitable than Mars. We'd need to come up with quite the feat to extinguish life here, think steering a Moon-sized asteroid.

[gnulinux]

We do know at this rate earth will be unsuitable for human life in the future and we do almost nothing about. If it were just next year, maybe we would do more about it. But my point is we can't do much since we don't have the technology to go to Mars. Emigrating to Mars is an unsolved problem and it can remain unsolved before we wreck the planet.

[jlarocco]

That's easy to say, but how would you actually do it?

To use myself as a counterexample, I don't see the point, and wouldn't be inclined to help.