this post was submitted on 06 Sep 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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81 Democrats call on Biden administration to pursue tighter climate standards for heavy-duty trucks (thehill.com)
submitted 1 year ago by [email protected] to c/[email protected]
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[–] [email protected] 5 points 1 year ago

That's a separate regulation:

Under the proposal, automakers would be required to improve the average mileage of all the passenger vehicles they sell by 2 percent a year for passenger cars, and 4 percent a year for light trucks, between 2027 and 2032.

If implemented, the plan means new autos sold in the United States would achieve an average fuel economy of 58 miles per gallon by 2032. Analysts project that in order for automakers to achieve that average, roughly two-thirds of the new cars they sell by that year would have to be all-electric.