this post was submitted on 31 Oct 2023
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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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[–] walter_wiggles@lemmy.nz 22 points 10 months ago (1 children)

Ok the climate model is still accurate, that's nice.

Sounds like that means we're still on track for making the earth uninhabitable?

[–] silence7@slrpnk.net 16 points 10 months ago (1 children)

We're in a funny place right now; we bent the 2nd derivative on emissions, but aren't yet moving fast enough to stabilize temperatures in the range where we're assured that civilization can survive.

[–] neanderthal@lemmy.world 19 points 10 months ago (1 children)

For those that don't understand calculus. Bending the 2nd derivative means we have slowed the rate of increase of emissions, but they are still increasing by more each year.

[–] match@pawb.social 14 points 10 months ago (1 children)

we're still accelerating towards the cliff but we're not flooring it :9

[–] Nudding@lemmy.world 9 points 10 months ago

Nah were still flooring it, just in a shittier vehicle.

[–] Szymon@lemmy.ca 4 points 10 months ago (2 children)

Outside the this year's peak hitting the top band, the last few look to be trending under the model average, while in the early 2000s it was trending above the model average.

Won't mean much on the small scale, but maybe we can be hopeful that we'll see observations starting to trend towards flatling.

[–] ladicius@lemmy.world 4 points 10 months ago

Ah, forget it. We are using more and more resources, not less.

[–] snooggums@kbin.social 1 points 10 months ago

The multi year under average trend is most likely the result of positive changes, but as shown it wasn't enough to get us out of the overall trend. If nothing else it might show that actions are working, and that we need to really ramp them up.

[–] Open_Mike@artemis.camp 1 points 10 months ago

Cue the "Are you being served?" theme song.