this post was submitted on 16 Feb 2025
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Climate - truthful information about climate, related activism and politics.

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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: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world. About 1C of total warming. Second chart: about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability. Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases. About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

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Carbon capture more costly than switching to renewables, researchers find (techxplore.com)
submitted 3 days ago by [email protected] to c/[email protected]
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[–] meliodas_101 14 points 3 days ago (3 children)

How about we do both ?

[–] [email protected] 3 points 3 days ago

Yeah, we're largely past the arguments about the economics of global warming and should be well into the discussions on what is technically feasible. Not many costs are too great at this point.

[–] SkunkWorkz 3 points 3 days ago* (last edited 3 days ago)

Yeah net zero is not enough and using trees and plants to capture carbon probably isn’t enough either. We burned millions of years of plant growth in just a few centuries.

[–] [email protected] 1 points 3 days ago

We currently emit a lot so the choice is: emit less with renewables or keep emitting but capture the carbon

Since renewables are much cheaper we reduce emissions much faster then going with carbon capture. That might be a good idea down the line, but currently 80% of our energy comes from fossil fuels, so down the line is probably decades.