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‘Climate change is here’: Experts warn global crisis is decades ahead of forecasts
(www.independent.co.uk)
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.
The US is much more fragile than it seems. It was able to dominate the world by leveraging control of oil and currency to maintain the internal caste system. Fascism is expensive though, and it's already choking.
Genocide is a last gasp to maintain power. There is no way to prevent revolution, so the right is flailing. They believe that if they reestablish the "demographic distribution" that existed at their height, they can maintain power. Basically, they think they can ethnically cleanse the US back to the right. But that can't work. Nothing can possibly work because it's all over for them. So yeah, the US isn't going to last much longer... Especially now that they've nuked the soft power they used for so long to keep everything in check.