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.

Recommended actions to cut greenhouse gas emissions in the near future:

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A columnist at Bloomberg has a similar take

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[–] Damaskox@lemmy.world 2 points 1 year ago (1 children)

Luckily we have some rays of light in the darkness though!
I came across this other Lemmy post about Portugal and clean energy!

[–] silence7@slrpnk.net 6 points 1 year ago (1 children)

Yeah, a number of jurisdictions have hit the point where they can achieve 100% renewable electricity for short periods of time; California and Finland both come to mind as well.

It's going to take a lot more to get to the point where the world can do it on an ongoing basis though.

[–] Damaskox@lemmy.world 2 points 1 year ago

I can believe so.

We must always start with the smallest achievements!