this post was submitted on 17 Jul 2024
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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 5 months ago* (last edited 5 months ago) by [email protected] 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] 10 points 5 months ago (2 children)

If I’m interpreting the other poster correctly, they might be referring to what’s known as Roll-Laden in German, and they’re outside the glass.

[–] [email protected] 4 points 5 months ago (1 children)

Makes sense.

In that case better for efficiency than interior blinds, but still blocking your view out.

Would be handy for an especially hot day or week, but I wouldn’t like to have to keep my windows covered all summer.

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

They’re actually way more convenient than that! You have a strap on the inside of the window that you can use to raise or lower the shutters as much as you like. When it’s fully closed, the light is blocked out nearly completely though.

[–] [email protected] 2 points 5 months ago (1 children)

The video mentions exterior roller blinds as well, wasn't too in-depth but his main down points for them would be they still radiate heat close to the glass and they block all sunlight as well as airflow.

[–] [email protected] 4 points 5 months ago

As a southern European, roller blinds or shutters are necessary for survival. What most people used to AC don't realize, is that ANY light brings in heat. Roller blinds have holes in them that get closed only when you roll them down completely: if your house is somewhat cool, leaving them down with the holes open gives enough airflow while keeping most of the heat out. If you have AC, it's even better, you don't need much light to see inside.