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Governments Knew the Risks of Global Warming as They Chose Fossil-Fueled Growth in the 1950s and ’60s
(insideclimatenews.org)
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.
Eh, yes?
We've known about global warming since the 1890's when first scientific reports about it were published
This isn't a new thing, its just been swiped under the rug for decades because profits for a few people.
And before the capitalism bad crowd chimes in, every country ignored it unless you're willing to claim that the USSR was all about environmental protection (it was most definitely not)