this post was submitted on 02 Mar 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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Off To A Great Start in 2024 (slrpnk.net)
submitted 8 months ago by spaduf@slrpnk.net to c/climate@slrpnk.net
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[–] Ranvier@sopuli.xyz 9 points 8 months ago* (last edited 8 months ago) (1 children)

This is an El Nino year too, La Nina years will drag down the average somewhat. You can even see the inflection in the chart when el Nino started. Though obviously the charts are not looking great, with or without El Nino.

[–] spaduf@slrpnk.net 9 points 8 months ago (1 children)

While true, it's important to remember that 1.5 was the goal for 2050 (as a 30 year average). That seems fairly unlikely at this point

[–] Ranvier@sopuli.xyz 5 points 8 months ago

Oh I agree, absolutely. Just thought I'd add that as some people might wonder what that big jump was halfway through last year.