this post was submitted on 21 Jul 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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[–] flossdaily 3 points 1 year ago (10 children)

At this point I think we just need to face the fact that we're going to have to darken the skies with particulates in order to combat global warming.

There's just no way we're ever going to get corporations to stop killing us with greenhouse gasses.

[–] [email protected] 5 points 1 year ago (6 children)

It's not out of the question that we'll see that as a means of managing overshoot. It's a very high-risk approach: it means killing everything in the oceans with calcium-based hard body parts, and it means maintaining technical infrastructure for longer than civilizations last, which humans don't have a track record of doing.

[–] flossdaily 2 points 1 year ago (3 children)

I don't see how we can avoid it. Did you see the paper the other day about how new evidence shows that were headed towards a 10⁰ C rise?

[–] [email protected] 4 points 1 year ago (1 children)

Can you point me to that paper? Google only turns up results stating that if we burned all fossil fuels on the planet we'd hit 10°C

[–] flossdaily 6 points 1 year ago (1 children)
[–] [email protected] 2 points 1 year ago

Saw it when it came out. It's well outside the consensus from people who study the topic.

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