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 silence7@slrpnk.net to c/climate@slrpnk.net
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[–] sxan@midwest.social 0 points 8 months ago

Preach it.

I am old enough where these sorts of points have much heavier weight. I can bike, but my body is not happy after any non-trivial distance.

I now have my eye on an electric recumbant trike. It solves all of my ergonomic (back) issues, and the electric would help with some of the terrain struggles and help me more accurately predict travel time. Plus, there's a bit more storage for, e.g., a change of clothes for the destination. They're damned expensive, though, even the cheapest.

Doesn't solve the weather issue, but I'm sure someone makes a version that has a shell; at which point you're essentially just driving around a small, slow, electric car with a lot of limitations.

I'm still going to replace my bike with a recumbent, though. My body just can't handle that position for prolonged periods anymore.