this post was submitted on 25 Sep 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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Europe’s Heat Pumps Put America’s to Shame | If switching one home to a heat pump improves energy efficiency, why not whole cities? (www.theatlantic.com)
submitted 1 month ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] Nollij@sopuli.xyz 2 points 1 month ago

Air conditioners are exactly a heat pump. As are refrigerators. The only difference is that it's turned around so the hot side is inside.

The typical heat pump setup (in the US) is not reversible. That means you would also have the AC heat pump next to it, capable of moving heat in the other direction.