this post was submitted on 30 Dec 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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Climate scientists hail 2023 as ‘beginning of the end’ for fossil fuel era (www.theguardian.com)
submitted 2 years ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] sinkingship@mander.xyz 6 points 2 years ago

First paragraph:

Global efforts to slow a runaway climate catastrophe may have reached a critical milestone in the last year with the peak of global carbon emissions from energy use, according to experts.

A day earlier also in The Guardian:

World will look back at 2023 as year humanity exposed its inability to tackle climate crisis, scientists say

Doesn't feel like optimism to me when we merely stop accelerating the whole mess. That's the most easy part, I believe.