this post was submitted on 20 Aug 2026
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Climate

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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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[–] taiyang@lemmy.world 8 points 14 hours ago (1 children)

Good, and I use one. It's mind boggling that anyone wouldn't use one? It uses so little energy that I don't even notice. My stupid always-on smart TV uses more power...

[–] HerbGrower@slrpnk.net 2 points 5 hours ago

I wouldn't say I don't notice as it's most of my energy use. Monthly in summer we use 150-200kWh, in winter its 550-650. Heat pump does heating and hot water so the shower uses it too.

[–] HubertManne@piefed.social 3 points 12 hours ago

One thing that is hard about my unemployment was this was an upgrade we were hoping to make.

[–] WhoIzDisIz@lemmy.today 22 points 19 hours ago (4 children)

About fucking time. I've never understood why they weren't used to begin with.

[–] Pika@sh.itjust.works 9 points 13 hours ago

In the northern locations they got a really bad name early on because the early models didn't do jack in colder climates, so it didn't make sense to have the pump and an additional heat source ontop of it so many just went to having a lone heat source like a furnace.

Since then they have steadily improved in tech and if you get the right type are good for locations that don't go under -23C (-10 F) but, they still have a bad name due to the experiences with the early tech.

[–] SaveTheTuaHawk@lemmy.ca 9 points 17 hours ago (2 children)

they used to be expensive.

[–] booscience@beehaw.org 8 points 17 hours ago

And so installers were harder to come by, which means fewer people were told about it. Pretty easy to understand why it took a while to catch on.

[–] WhoIzDisIz@lemmy.today -1 points 12 hours ago (1 children)

That's incredibly short-sighted since they still paid for themselves.

Cool beans. Try being poor.

[–] stoly@lemmy.world 3 points 14 hours ago

Or inline water heaters. Seriously the whole world uses them.

They've been the standard around here for my entire lifetime. I'm in my first house that doesn't have one and when the air conditioner goes I'm replacing it with a heat pump.

[–] chickenf622@sh.itjust.works 17 points 18 hours ago (1 children)

Technology Connections is probably rejoicing at this news.

[–] belated_frog_pants@beehaw.org 6 points 17 hours ago

They are so much quieter and work a million times better than conventional ones.

[–] SaveTheTuaHawk@lemmy.ca 3 points 17 hours ago

Because each apart is now heated/cooled independently, so the tenant can pay utility costs. And heating/cooling are one unit and the price of heat pumps has really come down and are easy to install.