Yes, I'm talking about global warming and other environmental damage, not nuclear war. But we're a long, long ways off from nuclear war being able to sterilize

Yes, I'm talking about global warming and other environmental damage, not nuclear war. But we're a long, long ways off from nuclear war being able to sterilize the planet. I don't think nuclear war could even end civilization - there are too many countries not in the nuclear club who probably wouldn't be targets in a nuclear war. Would someone bother to nuke, say, Copenhagen? Or Cairo? Or Bangkok? Or the entire South American continent? I can't even think of nuclear targets in the southern hemisphere, which would be somewhat isolated from fallout etc as well thanks to distance and equatorial weather patterns.