this post was submitted on 29 Nov 2023
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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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Plans to present meat as ‘sustainable nutrition’ at Cop28 revealed (www.theguardian.com)
submitted 11 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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Given what we know about the limits of soil seqeustration this is basically a PR exercise by the meat industry to keep the methane flowing into the atmosphere.

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[–] LeadEyes@lemmy.world 8 points 11 months ago* (last edited 11 months ago) (2 children)

Raising animals for meat isn't inherently an awful thing for the environment. There is land that is useful for grazing but unsuitable for growing crops. Turning inedible grasses into meat is very useful but industrial scale grain fed and fattened meat production clearly is a problem.

[–] silence7@slrpnk.net 6 points 11 months ago

That's a huge part of it. The second problem is that cattle produce a lot of methane as part of their digestive process. Other species produce a lot less.

[–] Gloomy@mander.xyz 4 points 11 months ago

We would need alot less land, if we only used it for plants to feed humans, instead of using it to produce meat. Land that is now used for grazing could be rewildered and contribute to countering the massive loss in biodiversity. It is one of the greatest errors of the system we live in, that everything is seen trough the lens of generating short term profits.