this post was submitted on 26 Nov 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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Reality check on technologies to remove carbon dioxide from the air (news.mit.edu)
submitted 4 days ago by [email protected] to c/[email protected]
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[–] [email protected] 10 points 3 days ago (1 children)

There's no serious scientist who believes in direct air carbon capture.

[–] [email protected] 3 points 3 days ago* (last edited 3 days ago) (2 children)

And yet wasn't it central to the last ipcc report, that we could hold to 1.5C of we stopped all carbon emissions dead and came up with as yet not invented ways for carbon capture. And everyone said "sounds great someone should totally get on that"

[–] [email protected] 4 points 3 days ago

More like "carbon capture you say? That sounds like a great reason to stop caring about emissions"

[–] [email protected] 6 points 3 days ago

A bit more subtle than that but it can basically be read like that, yes. That’s the magic of ‘net zero’: overshoot now, find miracle cure later. That religious belief in tech is one of the many reasons why we’re fucked.