this post was submitted on 24 May 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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A Test of Cloud-Brightening Machines Poses No Health Risk, Officials Say (www.nytimes.com)
submitted 6 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 15 points 6 months ago (1 children)

One thing efforts like these don't do is decrease the level of CO2 which carries a whole host of issues.

[โ€“] astropenguin5 2 points 6 months ago

Well yeah, but the intention is to lessen the effects of the warming already happening and what will happen in the future no matter what we do. Nobody is pretending like we need to do this instead of cutting emissions, (except maybe oil execs I guess), we can do both at once.

The one downside of this and other geoengineering options is that once we start we can't stop until CO2 levels drop back down so we don't get a more sudden global temperature spike which would be worse for the environment most likely