this post was submitted on 26 Nov 2024
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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.

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Reality check on technologies to remove carbon dioxide from the air (news.mit.edu)
submitted 3 weeks ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] BlackLaZoR@fedia.io 12 points 3 weeks ago (1 children)

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

[–] sping@lemmy.sdf.org 3 points 3 weeks ago* (last edited 3 weeks 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"

[–] thefluffiest@feddit.nl 8 points 3 weeks 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.

[–] theneverfox@pawb.social 5 points 3 weeks ago

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