this post was submitted on 17 Oct 2023
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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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Heat is making Earth uninhabitable. Why isn't this the top news story around the world? (www.salon.com)
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The study is this one

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[–] z3rOR0ne@lemmy.ml 6 points 1 year ago* (last edited 1 year ago) (1 children)

Not if the latter nightmare scenario occurs. Runaway climate change will ensure the extinction of humanity outright.

Runaway global climate change is not reversible by any amount of human action. Once a certain rise in global temperatures occurs, pockets of previously trapped methane gases in the ocean will be released into the atmosphere, heating the climate even more. The oceans themselves will then proceed to acidify, killing the necessary diatomes that produce the majority of O² on Earth that is necessary for the survival of most life on Earth.

100% chance of human extinction event. You better hope evolution repeats itself for humanity to get another chance at this.

[–] SirStumps@lemmy.world 2 points 1 year ago

If that happens, then I think humanity had its shot. Let another species try.