this post was submitted on 14 Aug 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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Montana loses fight against youth climate activists in landmark ruling [Ars Technica] (arstechnica.com)
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[–] [email protected] 3 points 1 year ago

The impact is narrow: it forces the state of Montana to review climate impact as part of environmental review of new projects (eg: opening a new coal mine):

The state’s characterization of the court proceeding as a “MEPA trial” and not a climate trial ignored the fact that the MEPA provision at issue was squarely about climate change. By prohibiting the consideration of greenhouse gas emissions and climate change in environmental reviews, Seeley ruled that provision is at odds with Montana’s constitutional right to a clean and healthful environment. At issue here is not how MEPA works, but how the state’s dismissive treatment of climate change endangers the youth plaintiffs and degrades Montana’s environment.

That's kind of a bare minimum start. It'll take a whole lot more to get to where we need to be.