this post was submitted on 01 Jan 2025
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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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UK government hires ‘nudge unit’ to help dispel heat pump myths | Behaviour experts say misinformation shared in media and by other stakeholders is impeding uptake (www.theguardian.com)
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[–] Scary_le_Poo@beehaw.org 4 points 4 days ago (1 children)

Modern heat pumps are very quiet.

[–] Drusas@fedia.io 1 points 4 days ago (1 children)

Again...we have them. Unless by "modern" you mean something like "no more than 2 years old", yes, they are still noisy.

[–] Scary_le_Poo@beehaw.org 2 points 4 days ago* (last edited 4 days ago) (1 children)

No, they aren't. I have 2. I'm sitting 8 feet from one right now. The only thing you hear is the whoosh of air.

Edit: I think you are talking of the super old motel style heat pumps. Not minisplits. Old style heat pumps are noisy. Minisplits are not. But seriously, minisplits have been a thing for the better part of a decade... Who the fuck is still installing motel style heat pumps anymore?

[–] Drusas@fedia.io 2 points 3 days ago (1 children)

I'm talking about modern heat pumps which do not use mini splits. Mini splits are nice and quiet. But whoever owned my house before me installed a heat pump that does not use them but uses the ductwork. It's loud.

There are obviously multiple models and we're not talking about the same ones. Neither of us is wrong.

[–] Scary_le_Poo@beehaw.org 1 points 3 days ago (1 children)

Ahh ok that makes sense. I feel like pretty much everyone is installing minisplits these days. Not saying that heat pumps don't still exist, but it's kind of a "but... Why?“ reaction. As in, why would anyone install this over an adequately powered minisplit.

[–] Drusas@fedia.io 1 points 3 days ago

That's a question I expect to be looking into a few years from now.