this post was submitted on 27 May 2025
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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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Earth is heading for 2.7°C warming this century. We may avoid the worst climate scenarios – but the outlook is still dire (theconversation.com)
submitted 1 month ago by Pro@programming.dev to c/climate@slrpnk.net
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[–] dumnezero@piefed.social 23 points 1 month ago

+2.7℃ is still optimistic.

[–] federalreverse@feddit.org 9 points 1 month ago

Electric energy generation is just one (large!) part of the equation, and one of the more hopeful parts too. But the article makes only a passing mention of transportation, doesn't mention (electrified) heating, doesn't mention nutrition, doesn't mention plastics, doesn't mention environmental changes that are now running without further human intervention like thawing tundra and deteriorating eco systems.

[–] Rhaedas@fedia.io 5 points 1 month ago

My non-scientific gut feeling is that regardless of what we do, we're too late to stop the natural feedbacks already in progress. Which was the problem all along - humans were never the sole cause of global warming, they were the catalyst with their emissions to set things rolling. Even twenty years ago if we had done everything right and stopped emissions, we had already pushed the environment to change. And we didn't, so we've been pushing that boulder down the hill even as it gains its own momentum. Smart, we are. The boulder will stop when it stops, not when we wish it.