this post was submitted on 16 Aug 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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Last month marked the world’s hottest July on record, US scientists say | This year could beat 2023 for the hottest year on record as 15-month heat streak extends, according to NOAA (www.theguardian.com)
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[–] Palerider@feddit.uk 8 points 2 months ago (1 children)

Coldest July of the rest of your life...

[–] WalrusDragonOnABike@lemmy.today 3 points 2 months ago (1 children)

Given the la nina cycle hasn't started yet, the next couple of years expected to be cooler? But one of those could be the coolest July for a very long time.

[–] ininewcrow@lemmy.ca 1 points 2 months ago (1 children)

a very long time

Could mean decades .... or millenia

[–] WalrusDragonOnABike@lemmy.today 2 points 2 months ago

Yeah. Wouldn't be confident to say within our lifetime given things like Yellowstone eruption or nuclear winter could change that.