this post was submitted on 09 Jul 2024
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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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Can we air condition our way out of extreme heat? part 1: a primer on air conditioning (www.theclimatebrink.com)
submitted 4 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[โ€“] HobbitFoot@thelemmy.club 2 points 4 months ago (1 children)

Technically, all heat pumps have greater than 100% efficiency. It is how electric heat pump heating can compete with natural gas heating in terms of efficiency.

[โ€“] brisk@aussie.zone 1 points 4 months ago

They have a greater than 100% Coefficient of Performance, which is often marketed as efficiency in heat pumps. Their efficiency is bounded between 0 and 1 like every other physical system.