Global warming is a classic collective action dilemma.
A solution to global warming is a collective good and will be undersupplied, as Mancur Olson pointed out back in 1965.
Therefore, if Olson’s premises and argument are valid, we’re dooooooomed.
However: his argument supposed a rational economic agent who will wait for others to act, since his contribution is so small that on its own it won’t make a difference, and it’s absence won’t be noticed.
Only if humans don’t act as selfish rational agents will we avoid a climate catastrophe.
Fortunately, behavioral economics etc. suggests that we have bounded rationality, and even better, psychology and evolutionary biology suggests that non-rational altruism is hard wired.
Maybe there’s hope.