Move to renewable energies as fast as possible. Wind and solar is now cost-competetive, especially if you look at solar in the south of the US. If anyone operates an AC unit at home, why is it not powered by solar? Especially as you really need it when the sun shines. Tesla have shown: electrical cars are a thing. The quicker the automotive sector moves to electrical, the better.

We can't solve the problem over night, but thats the reason we should start now. There is a lot we can do. Last year, Germany produced 30% of its energy with renewables, up from 25% the previous year. As I write this, German solar produces 22 GW of solar electricity alone.