Scientifically-ignorant, gullible, stupid people will be the end of civilization.
There is no scientific data that supports global warming. None. All of the temperature data collected is then "adjusted" for various made-up factors ... which results in (surprise!) an increase in temperature.
Second, who's to say that the Earth isn't returning to the temperature it should be?
Third, doesn't solar activity have any effect? Remember back in the 70's when we were supposedly entering an ice age? And whatever happened to "acid rain" which was going to destroy the planet?
Lastly, water vapor accounts for about 97 percent of the total (natural plus man-emitted) greenhouse warming of the planet." The current concentration of carbon dioxide is about 0.04%. In pre-industrial times it was 0.03%.