this post was submitted on 18 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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Montana Supreme Court affirms decision in Held, historic youth climate case | Limit on analysis of greenhouse gas emissions unconstitutional, court says (dailymontanan.com)
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[–] Telorand@reddthat.com 9 points 4 days ago* (last edited 4 days ago)

The 70-page decision, authored by Chief Justice Mike McGrath, comes 16 months after Lewis and Clark District Court Judge Kathy Seeley ruled in the landmark Held v. Montana lawsuit, explicitly stating that the state’s greenhouse gas emissions are “proven to be a substantial factor in causing climate impacts to Montana’s environment, and harm and injury to the youth plaintiffs.” Seeley’s decision also rolled back two laws enacted by the 2023 legislature that changed the Montana Environmental Policy Act.

...

The state immediately appealed the decision to the Montana Supreme Court, which heard oral arguments in the appeal in July. The court found in a 6-1 decision that Montana’s constitutional guarantee of a “clean and healthful environment” includes a stable climate system, “which is clearly within the object and true principles of the Framers inclusion of the right.”

Damn, congrats to the plaintiffs!