this post was submitted on 30 Jul 2024
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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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Renewables overtake fossil fuels to provide 30% of EU electricity (www.theguardian.com)
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[–] eleitl@lemm.ee 1 points 3 months ago* (last edited 3 months ago)

This is what I meant https://ourworldindata.org/grapher/global-primary-energy

Hydrogen from water electrolysis needs massive (look at world gas demand for scale) excess renewable electricity production and support infrastructure which isn't there nor are there credible buildout and financing plans for it. Even if it would happen it would cause demand destruction due to its high price.

This isn't an argument against doing it. It's just about the status quo and mid-term future.