https://marco.org/2007/05/28/if-we-accept-the-high-expense-of-combating-global
If we accept the high expense of combating global warming, and it turns out we can’t make a dent in it no matter what we do, or the earth cools on its own for reasons we didn’t forsee, we’ve really screwed the pooch. It would be the biggest fuckup of all time.