this post was submitted on 17 Dec 2024
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Climate - truthful information about climate, related activism and politics.

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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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2024: Hottest year to date, and first year over 1.5ºC (climateandcapitalism.com)
submitted 5 days ago by maniacalmanicmania@aussie.zone to c/climate@slrpnk.net
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[–] HappycamperNZ@lemmy.world 18 points 5 days ago (1 children)

Sitting here in a beautiful sunny day, people can be forgiven for thinking its not a big deal.

Until you realise how much energy it takes to raise the temperature of the ocean and land by 1.5. And then that all that energy goes into every weather event forever until we reverse it.

[–] Reverendender@sh.itjust.works 8 points 5 days ago* (last edited 5 days ago) (1 children)

55 degrees F in Massachusetts a week before Christmas. I was driving with my windows down. I got nuthin else. What the shit, man.

[–] camerondakota@slrpnk.net 4 points 4 days ago* (last edited 4 days ago) (1 children)

It’s been twenty degrees F (11C) above average in Arizona this week. Should be frigid with snow on the ground (in the mountains) yet I was riding my bike with a t-shirt this week.

[–] Reverendender@sh.itjust.works 5 points 4 days ago (1 children)

OK, I looked it up. Average from 1979 to 1999 for me on December 17th was 29.1 degrees F.

[–] HappycamperNZ@lemmy.world 5 points 4 days ago (1 children)

Can we have it in non-freedom units, il even take a clothing layer comparison is the metric systemis spawn of Satan. Is this snow - t shirt weather?

[–] Reverendender@sh.itjust.works 4 points 4 days ago (1 children)

29 is bundled up layered clothes, ice, and snow weather. 55 is a hoodie over your tshirt.

[–] HappycamperNZ@lemmy.world 3 points 3 days ago

Snow storm v nice autumn afternoon?

Damn...