this post was submitted on 16 Jan 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.

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US in deep freeze while much of the world is extra toasty? Yet again, it’s climate change (apnews.com)
submitted 11 months ago by [email protected] to c/[email protected]
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[–] [email protected] 6 points 11 months ago* (last edited 11 months ago) (1 children)

https://www.dw.com/en/when-the-jet-stream-weakens/video-62097932

here is an explanation video with animations at around the 2:30 and 5:00 min mark.

The fast wind was moving more or less straight. Now that it slows down, it gets a wavy pattern, that also moves slower. As a result we get more stable cold zones and more stable heat zones. As these move slower over the planet, it results in longer cold and heat waves, with adverse weather. So the boundary doesn't get "breached" in one direction, but rather it relaxes in both directions, getting the yo-yo weather you describe.

[–] [email protected] 3 points 11 months ago

Thanks, that makes it a lot clearer for me.