this post was submitted on 17 Nov 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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The world's 280 million electric bikes and mopeds are cutting demand for oil far more than electric cars (theconversation.com)
submitted 11 months ago by Masimatutu@mander.xyz to c/climate@slrpnk.net
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[–] grue@lemmy.world 5 points 11 months ago* (last edited 11 months ago)

They also just need less street to begin with because they take up less space. Considering that it's the 'need' to shoehorn in wide roads and parking lots that makes places car-dependent in the first place, the positive impact of more people switching to bikes is even greater than "even greater!"