this post was submitted on 06 Feb 2024
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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.

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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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[–] [email protected] 6 points 10 months ago* (last edited 10 months ago) (2 children)

Doesn’t help that El Niño is currently in effect, with the next several seasons predicted to be affected by it. Muddies the data, so to speak.

[–] [email protected] 13 points 10 months ago (1 children)

Yeah, but some of those previous years had El Niño too and they're waaaay down below the 2023 and 2024 lines.

[–] [email protected] 6 points 10 months ago* (last edited 10 months ago)

Precisely. A lot of them! El nino is not rare

[–] [email protected] 1 points 10 months ago

It’s very much the case that El Niño is affecting our perception right now, but La Niña is believed to be making a comeback in a few months.

https://yaleclimateconnections.org/2024/01/will-la-nina-return-this-fall-the-tea-leaves-are-unusually-strong/

Then again, that’s not exactly good news. Hurricanes, drought…yay.