this post was submitted on 08 Jan 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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Why decades of progress in cars’ fuel efficiency is ending | automakers’ offerings have gotten less efficient as they swap out sedans for SUVs. (wapo.st)
submitted 10 months ago by silence7 to c/climate
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In the U.S., gas-powered cars have stopped making big efficiency gains. Some automakers’ offerings have gotten less efficient as they swap out sedans for SUVs.

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[–] MataVatnik@lemmy.world 15 points 10 months ago (1 children)

Efficiency goes down as car manufacturing begins offering main battle tanks for the suburban mom that does it all