the guardian: Neil DeGrasse Tyson: ‘I think the things you might think up in a bar’

"If you had the power of geoengineering to terraform Mars into Earth, then you have the power of geoengineering to turn Earth back into Earth. So the argument that if we trash Earth we need another planet doesn’t work. I am not convinced that escaping Earth and leaving others behind to die is the most sensible solution out there."


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