Define clearly the crux of the crisis. Then, unleash abilities of people.

America became great at the first place not because the government in 1776 worked out the great plan and and then executed it diligently. It was exactly the opposite, government limited itself just to securing the basic of a lawful society. Then, free from government coercion, people found ways to cooperate in bettering their lives.

Today, climate change can put trauma on us as a society. In dealing with this problem, we can use the same method that worked before. And, by the way, avoid the method that led to the collapse of the Soviet Bloc.