There’s a problem with this plan: under almost no circumstances does is colonizing another planet the best way to adapt to a problem on earth. And yet it would still be way, way easier than colonizing another planet. I think the issue is that nerds find space travel and colonizing other planets extremely appealing because they love science fiction and space exploration exciting. If there are habitable planets within reach, then there must be many, many habitable planets that aren't within reach. In a world of other habitable planets, saving the actual life on earth grows in importance compared to preserving the species somewhere in the universe.

Source: Forbes May 06, 2017 19:16 UTC