this post was submitted on 05 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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Heat pumps are expensive. What if billionaires bought them for everyone? (grist.org)
submitted 3 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
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[–] PenisDuckCuck9001@lemmynsfw.com 1 points 3 months ago* (last edited 3 months ago) (1 children)

It's expensive to get them installed. Instead of ducts running all over your house, the refrigerant line has to run from the outside section to the inside section. It costs as much to get one of these as a normal central air system because it's also complicated. Heat pumps are more efficient in certain situations so that's the tradeoff.

[–] natebluehooves@pawb.social 8 points 3 months ago (2 children)

Central heat pumps are a thing. You are thinking of mini split systems.

[–] Sir_Kevin@lemmy.dbzer0.com 3 points 3 months ago

Even if we are talking about mini splits, they're not hard to install. Any adult with a drill can do it.

[–] ianovic69@feddit.uk 1 points 3 months ago (1 children)

Is that a ground source? I can't use air source.

[–] GreyEyedGhost@lemmy.ca 2 points 3 months ago

Mini splits come in air source systems, and can be quite efficient.