this post was submitted on 08 Apr 2025
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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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Oxford Professor: Cycling is 10 times more important than electric cars for reaching net-zero cities (theconversation.com)
submitted 1 week ago by dwazou@jlai.lu to c/climate@slrpnk.net
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[–] yonder@sh.itjust.works 4 points 1 week ago

At least where I live, the city centre was built and designed around walking and public transit, but then the city destroyed those streets to make way for cars. If the city were to reverse those changes and build back areas designed for walking and cycling, it would result in a much better city centre, without any drastic restructuring.