this post was submitted on 25 Jun 2025
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Climate - truthful information about climate, related activism and politics.

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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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More people buying electric cars and heat pumps than ever before (www.bbc.com)
submitted 19 hours ago by sabreW4K3@lazysoci.al to c/climate@slrpnk.net
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[–] MudMan@fedia.io 3 points 17 hours ago

That depends on what pump you're using and for what. We installed one this year that handles heating and hot water, but is currently not plugged in to do AC (it can do it, the rest of the installation just can't support it).

I don't think anybody refers to those as reverse cycle AC. Certainly none of our installers or the people handing the government grants we got as part of the process. That's generally used to refer to window units that can do both heat and cold air. Maybe Americans use the term for their crazy outdoor towers to do centralized air heating and cooling? I wouldn't know.