this post was submitted on 06 Nov 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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Trump 2.0: The climate cannot survive another Trump term (thehill.com)
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[โ€“] Sterile_Technique@lemmy.world 2 points 1 year ago (1 children)

Can't make any assumptions one way or another. We're dealing with positive feedback loops, so even if humans all get Thanos-snapped out of existence RIGHT NOW putting a full stop to emissions, pollution, etc, the environment will continue to worsen on its own because of the downward spirals we've set into motion.

The question is how long those feedback loops can go until they're broken naturally; or if they even can be broken naturally.

We may well have set our planet on a warming path that ends with it being molten, or one that sheds our atmosphere into space.

So... things might fix themselves after we go extinct; or it'll get worse until even the most resilient of extremophiles can't carry on, and Earth becomes another lifeless rock floating in space.

/shrug

[โ€“] photonic_sorcerer@lemmy.dbzer0.com 3 points 1 year ago

That's true. We couldve pulled a Venus, which would suck massive donkey balls.