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This is how big one tonne of CO2 is
(slrpnk.net)
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.
At what temperature?
Whatever it was about on Jan 27, 2024 in Vienna in the evening during the Science Ball. Probably about 10°C
But at what pressure?
~1 atm/bar.