this post was submitted on 27 Jul 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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[–] Eeyore_Syndrome@sh.itjust.works 23 points 3 months ago (3 children)

Stupid rolling stone.

It's SO FAR. Fixed

[–] silence7 10 points 3 months ago (2 children)

As in "We haven't cut emissions to zero yet." We can, and will. It's a question of whether we do it quickly enough to preserve a civilization-supporting climate.

[–] original_reader@lemm.ee 8 points 3 months ago

Likely not. The next years will be hell. Then, after 10 years or so - maybe sooner -, 2024 will be remembered as one of the more pleasant years with still bearable temperatures and comparably few catastrophes. We even still had affordable coffee and olive oil.

[–] Rhaedas@fedia.io 4 points 3 months ago (1 children)

We should probably start with reducing the rate of increase first. Then talk about reducing emissions per year. As for zero emissions, I fail to see how we have a civilization of any sort without some emissions. Maybe that's the point. Was "Net Zero" a hidden word for collapse all along?

[–] silence7 4 points 3 months ago* (last edited 3 months ago) (1 children)

Emissions have been falling in the US and EU since ~2005 or so, and look to be about to start falling in China, which means that they'll be falling worldwide after this year.

But...they'll likely be falling slowly, rather than rapidly, which is a problem.

[–] hobovision@lemm.ee 1 points 3 months ago (1 children)

That's a really hopeful reading of that chart. What I see in that chart is that even a year or two of falling emissions could quickly be wiped away. Just look at 2022.

[–] silence7 1 points 3 months ago

It's a bit more than that; there are policies in place which make Chinese emissions likely to slowly drop from here on out

[–] rickdg@lemmy.world 6 points 3 months ago (1 children)

Did you just homer simpsoned a headline? 😅

[–] Rhaedas@fedia.io 6 points 3 months ago

Yes. But it makes the second sentence make more sense.

And for the answer, the Jurassic Park "see, nobody cares" meme would fit in well.

[–] RegalPotoo@lemmy.world 1 points 3 months ago

Like I understand what they are trying to say, but yeah really ticks me off when people say "ever" when they mean "yet"