this post was submitted on 12 Aug 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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Nights in Las Vegas Are Becoming Dangerously Hot (www.nytimes.com)
submitted 3 months ago by [email protected] to c/[email protected]
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[–] [email protected] 7 points 3 months ago* (last edited 3 months ago) (2 children)

Would you say the same about places where it gets well below freezing in the winter?

Edit: Many older houses don't have AC in Vegas. They use evaporative cooling mostly.

[–] [email protected] 10 points 3 months ago (1 children)

It’s easier and more efficient to wrap yourself up with blankets and covers and use minimal heating (with decent home insulation) to warm yourself up than it is to cool down when you are too hot.

[–] [email protected] 2 points 3 months ago

At an individual level sure, it's easy to throw on a blanket when it's cold. But at a household level, much more energy is used to heat homes.

https://www.bloomberg.com/news/articles/2019-07-10/why-we-always-fight-over-air-conditioning

[–] [email protected] 7 points 3 months ago* (last edited 3 months ago) (2 children)

yeah if you don't have heating (wood, pellets, gas, fossil, electric, whatever) you can't live in that climate. its, like, a thing.

but its way easier to heat a thing and keep it warm than cool a thing.

[–] [email protected] 2 points 3 months ago (1 children)

[–] [email protected] 2 points 3 months ago (2 children)

huh. I was just looking at air conditioners being really inefficient and it being really hard to keep a thing cool passively because all the stuff we do/have makes heat nowadays.

[–] [email protected] 1 points 3 months ago

On the other hand, ACs are heat pumps, which are generally efficient for transferring heat energy (both to warm and cool)

[–] [email protected] 1 points 3 months ago (1 children)

It's easy to passively cool things, as long as you're okay getting them wet :)

[–] [email protected] 1 points 3 months ago

me? yes. my living space? less.

[–] [email protected] -1 points 3 months ago* (last edited 3 months ago) (1 children)
[–] [email protected] 0 points 3 months ago

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