this post was submitted on 08 Jan 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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Global heating will pass 1.5C threshold this year, top ex-Nasa scientist says (www.theguardian.com)
submitted 10 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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What this means in practice is that we enter a minefield where we start to lose major ecosystems as temperatures continue to rise.

This makes it incredibly important to do everything we can to limit the amount of additional warming we see; each 1/10 of a degree adds to the risk.

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[–] floofloof@lemmy.ca 5 points 10 months ago* (last edited 10 months ago)

One of the most shocking things about this climate change so far is that the summer is no longer a season to look forward to. For the last two years the skies have been white, orange or brown and the air has smelled of smoke for large stretches of the summer and on into the fall. Evidently the powers that be will do nothing unless they are made uncomfortable, and making them uncomfortable means more than polite protesting.