this post was submitted on 28 Oct 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.

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

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A core California climate tool is under threat this election. How leaders are bracing for impact (www.sacbee.com)
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if Donald Trump or the Supreme Court dismantles one of the state’s key weapons against carbon emissions, a half-century old Environmental Protection Agency waiver program that allows California to set regulations that are stronger than federal rules. “If California has its authority under the Clean Air Act limited, that is a blow,” said Ann Carlson, who served as head of the National Highway Traffic Safety Administration under Joe Biden. “Not just to California, but the whole country. California’s leadership is often followed by other states and frankly by the federal government.”

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