this post was submitted on 29 Jun 2025
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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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‘Explosive increase’ of ticks that cause meat allergy in US due to climate crisis (www.theguardian.com)
submitted 4 days ago by silence7@slrpnk.net to c/climate@slrpnk.net
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Unusually aggressive lone star ticks, common in the south-east, are spreading to areas previously too cold for them

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[–] LwL@lemmy.world 4 points 3 days ago

The hypothesis kind of seems like selection bias to me. It seems more likely to me that in order for life to flourish as it has on earth, it has to (by pure chance) create a self regulating system, as otherwise it will eventually die off. What's interesting (and I hadnt thought about prior to reading the wikipedia article) to me is that it seems possible that the current rapid temperature rise will lead to some organism(s) we don't know or think about multiplying like crazy, and that has some form of cooling effect due to the organism's emissions or w/e. Industrialized humans appear to be the most extreme (in the sense of rapid, persistent change) climate event to happen to this planet since it has had life, but at the very least we're not the first time something fucked up the climate. Maybe we'll just get lucky after all.