this post was submitted on 16 Apr 2024
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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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Beef produces 85 kg CO2e per kg of food. Tofu produces 2.9 kg CO2e per kg of food. (ourworldindata.org)
submitted 7 months ago by testeronious@lemmy.world to c/climate@slrpnk.net
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[–] Gormadt@lemmy.blahaj.zone 26 points 7 months ago* (last edited 7 months ago) (21 children)

Another "fun" chart on various food sources green house gas emissions adjusted per kilogram of food product.

Source

I love how the chart breaks cows into multiple categories making it look that much smaller even though it's still chart topping.

Edit: Oddly enough they're citing the same data in both the one I link and OP's link.

[–] spud@sh.itjust.works 1 points 7 months ago (1 children)

poore nemecek had flawed methodology and should not be the basis of policy decisions.

[–] nameisnotimportant@lemmy.ml 2 points 7 months ago (1 children)

Kindly explain where so we can make our own opinion.

[–] spud@sh.itjust.works 2 points 7 months ago

as just one facet, they count everything fed to beef, including cottonseed, when calculating the inputs. but cotton isn't grown for cottonseed. if we didn't feed a large portion of our annual cottonseed to livestock, it would just be wasted. vegans will tell you that the return is only 1/10 of the input, but that's a lot better than 0/10.

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