this post was submitted on 03 Mar 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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Energy efficiency of active travel (walking, cycling, ebike) compared to an electric car (slrpnk.net)
submitted 8 months ago* (last edited 8 months ago) by [email protected] to c/[email protected]
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[–] [email protected] 12 points 8 months ago (1 children)

Time efficiency in a modern urban area optimized for public transport and non-motorized transport modes compared to time efficiency in current typical urban areas, which are focused on individual motorized transport modes with severe lack of public transport:

[Fancy chart: first case left, second case right]

[Good] [Bad]

[–] [email protected] 2 points 8 months ago

That's nice, but in my town at least driving to work takes half the time of taking the direct bus and that's with half the roads in the town being closed to private vehicles. To walk to work I have to walk for 2 hours without breaks down to the bridge and back up the other side or cycle for 50 minutes (at -10°C) this is compared to a 10 minute drive through the tunnel.

I genuinely wouldn't mind taking the bus if my kids daycare was open longer.