this post was submitted on 13 May 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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Swamp Coolers’ Ability to Beat the Heat is Evaporating in Record Southwestern [US] Temperatures (insideclimatenews.org)
submitted 16 hours ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] ProdigalFrog@slrpnk.net 3 points 12 hours ago (1 children)

Arguably it'd be better to use air conditioners as long as that energy is from renewables such as solar (where the southwest is particularly suited) to help save water, which is in critically short supply in those areas.

[–] swampdownloader@lemmy.dbzer0.com 1 points 12 hours ago

True, if you had AC units powered solely by on-site solar and if they never operated powered by the grid (so never at night) you could potentially save water. But any grid electricity comes with exponentially more water use so realistically that will never happen.