this post was submitted on 17 Jun 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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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Please also see !cdr (slrpnk.net)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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I'm running a community at https://slrpnk.net/c/cdr but not sure how discoverable it is right now. Some of you might find it interesting (if anyone joins, and I actually start posting regular content).

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

I might be preaching to the choir on this but at the very least, long term, we need to find a solution to remove carbon from the atmosphere. We have focused our climate report on the relative near term, which is important, but I don't know if the broader public realizes that even if we stopped emitting today the temperature would continue to climb for at least a few centuries to millenia. We've know since the 1800's that a doubling of CO² corresponds to about a 4°C increase in temperature in the long run.

CDR is a fundamentally necessary technology to meet our goals.

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

Nothing wrong with the idea of removing...but actually getting to the point where we're not adding CO2 to the atmosphere means not burning fossil fuels in the first place is necessary for it to make the kind of difference we need it for. And the way that CDR is getting pushed (and funded) is in large part as a means of creating social permission to keep on burning. That's a problem.

[–] [email protected] 1 points 1 year ago

I agree completely. But I am used to talking to skeptics and I tend toward arguments that are simple to drive home without needing to point to this as human caused because media.