The US was the only country to decrease emissions over the decades while growing our energy output, all countries in the Paris Climate Accord failed to do so.

We did it because of fracking nat. gas replacing coal due to innovation. Capitalism brings a lot of innovation including advancements in green energy too.

Tesla was able to economically compete and take a huge segment away from the automobile giants through capitalism, forcing them to compete and develop EV cars.

I don't see many socialist countries actually doing much, hell Germany still wanted Russian gas so much someone (wonder who) had to blow up the pipeline!