this post was submitted on 15 Apr 2024
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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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Taking CO2 out of the air would be an absurdly expensive way to fight climate change (www.theverge.com)
submitted 5 months ago by testeronious@lemmy.world to c/climate@slrpnk.net
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[โ€“] WastedJobe@feddit.de 9 points 5 months ago (1 children)

It's not just expensive, it also doesnt work unlesss almost all energy used world wide is carbon neutral. This is because carbon removal is the reverse of a reaction used to gain energy, so it needs higher input energy than was gained by the power plant.

[โ€“] pennomi@lemmy.world 4 points 5 months ago

It would be really great if we had fusion.

But for now, excess solar energy is interesting to dump into carbon capture, since we currently have no way to store it.