this post was submitted on 10 Sep 2023
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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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Tire wear and tear revealed as a major contributor to waterway pollution (newatlas.com)
submitted 11 months ago by [email protected] to c/[email protected]
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https://pubs.acs.org/doi/10.1021/acs.est.3c03949

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[–] [email protected] 2 points 11 months ago

if we were willing to make and drive slower, lighter cars, and adapt our cities to them, we'd already be there. but so long as electric vehicles need to have equivalent speed, range, and size as big gas vehicles, they're gonna need a lot of heavy batteries. the lithium batteries we've got nowadays are crazy efficient in terms of energy stored per kilogram, but the cars demand so much energy. i'd love to be able to replace my car with an NEV, but alas, i legally would not be allowed to even go to the nearest grocery store with it, let alone my job.