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.

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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 to c/climate
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[–] RaoulDook@lemmy.world 5 points 1 month ago (2 children)

Heat pumps are quite common in the warmer US states. They are great at cooling in summer and good enough at heating in the winter.

[–] shalafi@lemmy.world 5 points 1 month ago

Yeah, I'm always a little mystified by these stories. Not sure I've lived anywhere without a heat pump in the last 20-years. Why are we trying to promote these things when they seem like a no-brainer in the first place?

[–] silence7 3 points 1 month ago

Yep, but district heating and cooling is rare; it exists in a few major cities and a few university and corporate campuses.