this post was submitted on 29 Mar 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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First cars, now trucks: Biden takes aim at tailpipe pollution | The EPA rule could prompt pushback from the truck industry, which has fought a rapid transition away from diesel-powered vehicles (wapo.st)
submitted 7 months ago* (last edited 7 months ago) by silence7@slrpnk.net to c/climate@slrpnk.net
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Yet EPA officials said the rule will not mandate the adoption of a particular zero-emission technology. Rather, it will require manufacturers to reduce emissions by choosing from several cleaner technologies, including electric trucks, hybrid trucks and hydrogen fuel-cell vehicles.

For comparison, The New York Times coverage

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[–] girsaysdoom@sh.itjust.works 1 points 7 months ago

It looks like there was a manufacturer limit of 300 truck gliders per year until orange man removed the restriction. It looks like in 2018, the EPA reinstated that rule though. Source.

I'm not sure if they actually have enforced it since then but 300 doesn't seem unreasonable.