this post was submitted on 08 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.

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Study shows EV owners have bigger carbon footprint than average because they are wealthier (phys.org)
submitted 1 month ago by ODGreen@slrpnk.net to c/climate@slrpnk.net
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Maybe EVs are not a comprehensive climate solution??

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[–] federalreverse@feddit.org 9 points 1 month ago* (last edited 1 month ago)

No doubt: Richer people can afford new shiny things more often. And electric cars are new shiny things right now. But ...

To learn more, the researchers obtained data from the CLIMATE NUDGE survey, which was a questionnaire sent by other researchers to thousands of people across Finland in 2022 [...] This, the researchers note, is because wealthier people in general have a bigger carbon footprint—they use more electricity, which is most often produced at a coal-burning plant, they consume more goods, the production of which tends to release greenhouse gases, and they drive more and travel more.

I have my doubts about the electricity bit of that particular reasoning. Electricity in Finland is generated primarily from low-CO2e energy: nuclear, wind, and hydropower. IEA, Electricity Maps (be aware: the latter site's CO2e numbers are deeply flawed, however the origin percentages are correct).