this post was submitted on 09 Aug 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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[–] blargerer@kbin.melroy.org 1 points 3 months ago

Sure of the first point I guess? I'm not some huge advocate of this technology, I'm just saying it's not an apples to apples comparison where you can simply say its 4x worse.

On the second point, no. It takes 10s or 100s of millions of years for coal/oil to form. And most of the stuff we mine/drill for was formed from trees before bacteria/fungus evolved ways to break down cellulose, so dead trees just piled up. Its plausible that its never removed from the carbon cycle unless we are the ones to put it back where we got it from. It will certainly not happen on human time scales.