I think this is true:
Humans are too stupid to prevent climate change from radically impacting on our lives over the coming decades. This is the stark conclusion of James Lovelock, the globally respected environmental thinker and independent scientist who developed the Gaia theory.
At one time, nuclear proliferation was the greatest threat facing mankind. A very short series of bad decisions could have quickly led to the extinction of the human race. I think that the global warming is the single most serious existential threat to humanity right now. It may not wind up bringing down modern human society, but I think of all the threats we face, it’s the likeliest one to do so. And yet, at a political level, few people treat it with that level of seriousness. That’s stupid.