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Earth Was Due for Another Year of Record Warmth. But This Warm? Scientists are already busy trying to understand whether 2023’s off-the-charts heat is a sign that global warming is accelerating. (www.nytimes.com)
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[-] LaunchesKayaks@lemmy.world 13 points 10 months ago

I live in PA and it was 60F on Christmas. My dogs got to play outside most of the day and I didn't even have to put on a sweater to check on them. I have the feeling I won't have to use my brand new winter coat this winter.

this post was submitted on 27 Dec 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.

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