this post was submitted on 13 Oct 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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I Study Climate Change. The Data Is Telling Us Something New. (www.nytimes.com)
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[โ€“] [email protected] 4 points 1 year ago (1 children)

Thanks for an example of the numbers. And to point out, the entirety of the world's production of electricity is still over 60% from fossil fuels, so using that energy to undo emissions is ideally a wash, and realistically still an increase. And that's if we turned all of the energy to carbon removal from everything else, which would never happen.

[โ€“] [email protected] 1 points 1 year ago

Well yes, but isn't the point to use progressively less fossil fuels - net zero implies we get to a point where we stop making things worse.

From there, then we can start making things better.