this post was submitted on 13 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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I flew propeller planes for 17 years – here's why they're making a comeback (inews.co.uk)
submitted 3 weeks ago by [email protected] to c/[email protected]
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[–] [email protected] 3 points 3 weeks ago

Another factor about a fuel-burning plane getting lighter with flight time: Many airplanes have a heavier takeoff weight than landing weight. Taking off is fairly gentle on the landing gear and wings as the load is transferred fairly gently. Landing can be an event; you may not be able to stop above your max landing weight, or the force of hitting the ground could overload the gear or the wing spars.

Battery powered planes don't get lighter with time aloft.