Nuclear winter would solve global warming though it still would count as climate change, so maybe it's a wash.

All signatories of the Paris accord. All are nominally thought to be rapidly transforming their economies in response to an existential crisis.

"including high polluters such as China, the US, India, Russia, Japan, Germany, South Korea, Iran, Saudi Arabia, Canada, Indonesia and Mexico, which generate more than half the world's greenhouse gas emissions, will somehow drive down their carbon pollution voluntarily and assiduously without any binding enforcement mechanism"

What is the binding enforcement mechanism?

https://en.wikipedia.org/wiki/Paris_Agreement

Well, Russia doesn't seem so happy about global warming. I gather that melting permafrost screws up gas production. So maybe they'd want to work with the US.

The US is well versed in "the lesser of two evils"