The bigger problem is the politics of China and Russia believe the environment doesn't matter as long as money can be made, and then they spread that idea with propaganda and disinformation among social groups. If the climate is to be saved, they need to be stopped.
I'm pretty sure China's CO2 emissions are dropping at such a rate they'll drop below the US's within 10 years.
They do not need to be stopped.
That would be great, but I doubt that. If US emissions stay stable that would be a 6.6% annual drop over a decade. If Carbonbriefs anslysis of Bidens climate policy is correct and US polizicans do not touch that at all, we are talking 10% annual drops. So far Chinas emissions have been growing most years. They might have peaked right now, but I foubt, they drop this quickly.
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.