There is so much upside and opportunity in attacking climate change and pollution, I cannot understand why so many are willing to bury their heads in the sand. Decarbonization and undoing the damage we done is the chance for a second industrial revolution, with a much higher quality of life.
I have the impression that most people opposing clinate change are afraid that the will loose something by the necessary changes, their cars, their perceived life style,... That's where politics come into play. Politicians have to communicate the necessary changes and come up with ways to manage the change without screwing the average Joe over. They found ways to divert billions to corporations with the best lobbyists, so there should be enough funds to combaz climate change. And once the western world started we are already half way there. The Paris accords used to be a global treaty, so there can be a global approach.
And global carbon emissions are at their highest ever.
It's good we've built renewables rather than fossil. But the scale of the problem is WAY bigger than 1 trillion over 20 years.