Renewables will inevitably become cheaper than fossil fuels, as the resource dwindles. The problem is how to make energy abundant enough to satisfy our current needs and those of the rest of the world, who expects to reach our standards of living?
(A: it's not possible, nuclear can help, but only for a while, perhaps enough time for the demographic transition to complete)
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.