this post was submitted on 11 Feb 2025
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Climate - truthful information about climate, related activism and politics.

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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.

Recommended actions to cut greenhouse gas emissions in the near future:

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Airbus Drops Hydrogen As Aviation Industry Admits It Won't Fly (cleantechnica.com)
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[–] [email protected] 13 points 18 hours ago

I'm just waiting for these companies to admit the same thing about all other forms of "sustainable aviation fuel." SAF is a joke and distracts from the fact that the travel industry needs to shift to electrified high-speed rail for continental travel and, for intercontinental travel, investigate ways to use wind and solar to make sailing an realistic option.

Admittedly, this makes long journeys longer. But the reality is that the world's obsession with fast travel is a problem in and of itself. We need to slow down as a society. There's no way around it.