this post was submitted on 29 Sep 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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Hurricaine Helene Aftermath - Appalachian State University, North Carolina (slrpnk.net)
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[โ€“] [email protected] 12 points 1 month ago (1 children)

That's right: usually. Sometimes no. Or sometimes the volume of water only slowly drains away (like some rivers move extremely slowly and it's almost as if it's not moving at all). If it takes 3 days for the water in the normally filled river to move 1 mile, even if it takes 2 days with the flooded valley to drain instead of 3, that's still 2 days of floods.

Imagine you drop a bunched up shirt onto the floor. If you look, you'll see that there are lower spots surrounded on all sides of high spots. Terrain irl is not so different from that in spots. Hope this helps explain :)

[โ€“] [email protected] 4 points 1 month ago

And don't forget that quite a lot of the rivers are likely clogged with downed trees, landslides, and other debris, further showing the draining process.