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[-] Enkers@sh.itjust.works 25 points 1 day ago

The shape of that curve scares me. I just hope it's a sigmoid curve, not an exponential.

[-] Reverendender@sh.itjust.works 5 points 1 day ago

Every collapse seems to trigger 12 others, further compounding things at an insane rate

[-] chonglibloodsport@lemmy.world 20 points 1 day ago

True exponentials are rare in nature. Things can look exponential in the short term but are really logistic.

Look at it this way: if the atmosphere gets hot enough it’ll boil off into space and then the earth will cool back down again due to the loss of greenhouse effect.

[-] TheBenCommandments@infosec.pub 1 points 14 hours ago

Unless we’re the next Venus

[-] chonglibloodsport@lemmy.world 1 points 13 hours ago

We don’t have the atmospheric pressure to be Venus (92 times the pressure of earth’s atmosphere). There’s simply far more gas there than here!

this post was submitted on 17 Dec 2024
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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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