this post was submitted on 14 May 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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[–] silence7 25 points 6 months ago (2 children)

Unfortunately, it's going to take both. Methane from cattle is a big enough deal that it matters.

[–] vividspecter@lemm.ee 8 points 6 months ago (1 children)

And also that it's absurdly inefficient in terms of CO2 emissions to grow crops just to feed these animals, rather than eat the crops directly.

[–] jeffw@lemmy.world 4 points 6 months ago* (last edited 6 months ago)

nOt AlL oF tHaT lAnD iS sUiTaBlE fOr HuMaN fOoD

Because god forbid we eat soy or something ig?