this post was submitted on 06 Feb 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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Is global heating accelerating? (slrpnk.net)
submitted 9 months ago by mambabasa@slrpnk.net to c/climate@slrpnk.net
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Data from Climate Reanalyzer says that daily sea surface temperatures for January 2024 are higher than they were in January 2023.

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[–] JohnDClay@sh.itjust.works 20 points 9 months ago

Here's a pretty harrowing video from Sabine about why global warming might be happening faster than we predicted. Basically, we were comparing our models against historic geological data, but the different atmospheric composition for cloud formation at that time may have been unaccounted for, meaning the climate sensitivity (how much co2 effects global temperatures) is likely higher than we were estimating.

https://youtu.be/4S9sDyooxf4