this post was submitted on 20 Apr 2026
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Climate

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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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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[–] trailee@sh.itjust.works 19 points 1 month ago (1 children)

Yes but look at that exponential curve. Donny can’t stop it, even if he’s going to destroy the US economy and future stability to die trying.

[–] Clent@lemmy.dbzer0.com 17 points 1 month ago (2 children)

Trumps bullshit is probably increasing adoption everywhere except the US. It makes financial sense to move away from fossil fuels. Making the markets unstable is another signal for why it makes sense.

[–] trailee@sh.itjust.works 14 points 1 month ago

The collapse of the petrodollar is going to be ugly for the US. I hope the rest of the world rides it out well enough, and indeed is motivated by the current goings-on to accelerate all of their climate adaptation economic growth.

[–] cravl@slrpnk.net 8 points 1 month ago (1 children)

I'm very curious to see if future studies explore whether Trump's reign of terror may have perversely had a net positive effect on the global climate.

[–] Clent@lemmy.dbzer0.com 7 points 1 month ago

Crashing the American economy would have at least a short term positive impact. From there it shouldn't take much to tip the cost efficiency so far in the favor of clean energy that it cannot be ignored during the recovery.