OR WE COULD, YOU KNOW, JUST GET OFF THIS PLANET AND SETTLE ON OTHERS.  NOTE: NOT ONE OF HIS “WAYS” IS IMMEDIATELY IMPLEMENTABLE; THEY ALL REQUIRE NEW TECHNOLOGY THAT MAY NOT BE ACHIEVABLE. OTHER THAN THAT THEY’RE TERRIFIC:  MIT professor unveils 5 ways to save ourselves from total human extinction.

OTOH I suppose us settling other worlds would mean escaping our would-be Earth-encompassing would be Masters…. and of course no leftist can be having with that.