this post was submitted on 28 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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‘Garbage Lasagna’: Dumps Are a Big Driver of Warming, Study Says | Decades of buried trash is releasing methane, a powerful greenhouse gas (www.nytimes.com)
submitted 8 months ago by [email protected] to c/[email protected]
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The study measured methane emissions at about 20 percent of about 1,200 large, operating landfills in the United States. It adds to a growing body of evidence that landfills are a significant driver of climate change, said Riley Duren, founder of the public-private partnership Carbon Mapper, who took part in the study.

“We’ve largely been in the dark, as a society, about actual emissions from landfills,” said Mr. Duren, a former NASA engineer and scientist. “This study pinpoints the gaps.”

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[–] Transcendant 5 points 8 months ago (1 children)

I've always thought... Why can't we put a perspex dome or something like thick clingfilm over a landfill site, and tap the methane?

[–] [email protected] 7 points 8 months ago (1 children)

You can cap a landfill and collect the methane, but there usually isn't enough for it to pay to pipe it anywhere. As such, tends to be flared on-site when something like that is installed.

[–] Transcendant 1 points 8 months ago

Makes sense, cheers for the info.