this post was submitted on 03 Nov 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.

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ERA5 showed this (globally warmest-ever) October to be 0.85 C warmer than the 1991-2020 average. Nov-Dec would have to be cooler than all 22 previous Nov-Dec to NOT set a new annual record (fediscience.org)
submitted 8 months ago by Masimatutu@mander.xyz to c/climate@slrpnk.net
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from Brian Brettschnieder (PhD climatologist, @Climatologist49@fediscience.org) in this toot

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[–] Nudding@lemmy.world 3 points 8 months ago (5 children)

I wonder how fucked we are if you look further back than industrialization, to pre cattle domestication. Add up all the cow farts from the past 10,000 years and I'm sure it's worse than we realize.

[–] nyoooom@lemmy.world 3 points 8 months ago (1 children)

I don't think it would be that bad, there used to be many less people and those people would eat much less meat. There would still be quite a few cow-like animals farting whether humans existed or not, it's probably a sustainable rate for the ecosystem.

[–] Nudding@lemmy.world 2 points 8 months ago (1 children)

Fair points all around. But there's definitely a tipping point somewhere that it becomes unsustainable and unatural

[–] nyoooom@lemmy.world 2 points 8 months ago (1 children)

Can't imagine the smell

[–] Nudding@lemmy.world 1 points 8 months ago

You never drove past a farm/ranch? Lol

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