Of course, if we had to leave the planet because of problems we caused for ourselves, we'dBut it will be a dramatically shorter time before we find ourselves in major demographic, ecological and resources-related trouble.
just bring our problems with us to an even harsher environment. A recipe for failure, eh?
True dat.Not that I think that space research has much of a role to play there, mind you. It is not IMO feasible to "evacuate to space".