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 3 months ago* (last edited 3 months ago) by kalkulat@lemmy.world to c/climate@slrpnk.net
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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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[–] 0laura@lemmy.world 11 points 3 months ago (2 children)

he mentioned that there are ones you can easily put down when you don't need them and said that if awnings were to become a thing he's sure they'd become smartified with some iot bullshit.

[–] mipadaitu@lemmy.world 11 points 3 months ago (1 children)

Biggest issue is that movable awnings would be more fragile, and fixed awnings are ugly and permanently block light.

Not sure they're coming back anytime soon.

[–] Damage@feddit.it 9 points 3 months ago* (last edited 3 months ago) (1 children)

Retractable awnings are VERY common in many parts of Europe, and they make a huge difference. I've got one on both balconies for my apartment, mine are electric and controlled by Home Assistant, I program them according to the position of the sun. You can install an anemometer to retract them automatically and protect them from damage.

[–] mipadaitu@lemmy.world 2 points 3 months ago (1 children)

That sounds amazing. Since I have an HA setup as well I'll see if that's an option here. We have a lot of South facing, large windows.

[–] Damage@feddit.it 2 points 3 months ago

You don't need smart motors or smart awnings, just a normal motorized awning connected to your smart switch of choice. I have bticino zigbee switches for the shutters, and shelly wifi ones for the awnings.

[–] Zwiebel@feddit.org 9 points 3 months ago* (last edited 3 months ago) (1 children)
[–] 0laura@lemmy.world 4 points 3 months ago

oh thats awesome, thanks! if i ever own a house ill totally get awnings. that wont ever happen but i can dream.