this post was submitted on 08 Sep 2023
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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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Climate Report Card Says Countries Are Trying, but Urgently Need Improvement (www.nytimes.com)
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One claim in the article is inaccurate:

Since then, the rise in global greenhouse gases has notably slowed.

There are pledges to do just that, but the global increase in CO2 and CH4 has not been altered, though some of the high-GWP refrigerants have been taken off the market.

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[–] mojo@lemm.ee 0 points 2 years ago

At least there's something to look forward to, only after all the damage has been done