If you're wondering, you haven't been reading here very long. It appears that the proposed spending to "prevent climate change" will cost the USA $7 Trillion more than the "damage" caused by the climate change.
Numbers are from GAO and IEA. Warning: there's math here, although it's basic Net Present Value analysis.
Bottom line: under typical planning assumptions, it's far more costly to implement climate change programs than it is to let things run their course.
Implication: Environmentalism makes poor people poorer. $7 Trillion could fun a lot of programs for poor people. "Being Green" is just more Rich People's Leftism.