this post was submitted on 17 Jul 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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Awnings: a simple cooling tech we apparently forgot about (www.youtube.com)
submitted 2 months ago* (last edited 2 months ago) by kalkulat to c/[email protected]
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This Incredible Tool (preventing insolation) That Our Ancestors Used To Keep Cool In The Summer.

Yeah, they cost money. So does installing air-conditioning. But they use no energy ( that'd would be bad for fossil energy-producers).

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[–] [email protected] 5 points 2 months ago

At my parents old home, I helped install a retractable one that covered the patio.

Certainly more expensive than a basic awning, but excellent utility. And handy for the times a storm/high winds are going to be coming through.

Some years later, the switch wasn't working properly, so while fixing it I use the guts of a garage door opener (another replacement, broken motor) to use the wireless remote as a second relay control for the awning. This was about 15-20 years ago, I'd bet there are more options today. Even just ones with a dry contact you can more easily wire into a system.