"So, if civilization doesn't end in, say, ten years, will algore agree to shut up and go away?"
Nope.
It will just be something else and everyone will have short memorys giving them a free ride. These people have been wrong over and over again. It makes no difference. Only if the left leaning MSM dies will things change.
Wasn't it Ted Danson who said, in the 1980's, that there would be no drinkable water or something like that in 20 years. These people are never held accountable for the things they say.