this post was submitted on 26 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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Eat Less Meat Is Message for Rich World in Food’s First Net Zero Plan (finance.yahoo.com)
submitted 11 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] neanderthal@lemmy.world 2 points 11 months ago (1 children)

we would need 50% of the agricultural area compared to now. And if everyone became vegan, we would only need about 25-30%

Yes, that is true. That isn't what I am talking about.

I am talking about what is currently being produced right now. My gut tells me if everyone literally went vegan tomorrow, there wouldn't be enough food to go around.

Reducing meat consumption does need to happen, but it will realistically take at least a few years, if not a decade to transition food supply chains. At minimum, it will take at least a few growing seasons to transition from animal feed crops to food crops.

[–] fatzgebum@feddit.de 2 points 11 months ago

Yes, it will definitely take years for such a transition. But since most people will not change their eating behaviour quickly and radically anyway, that will not be a problem I think.