this post was submitted on 24 May 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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Hydrogen-Powered Private Jets Can Cut Emissions — If They Can Get Off the Ground (www.bloomberg.com)
submitted 5 months ago by silence7 to c/climate
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[–] fpslem@lemmy.world 10 points 5 months ago

Pretty sick and tired of so-called clean aviation fuel efforts. Just build the damn high-speed rail already, knock out most of the domestic air travel, and limit flights to trips that couldn't be done by train. That requires zero new tech and would make WAY more of an impact on greenhouse gas emissions than hydrogen jets ever could.

[–] SquishyPandaDev@yiffit.net 8 points 5 months ago

How about no private jets?

[–] MrSpArkle@lemmy.ca 2 points 5 months ago

Hydrogen is a scam, and air transport is probably the worst application for it.