this post was submitted on 14 Jul 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.

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

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Red States, Defying Reality, Are Reclassifying [Methane] Gas as a “Green” Fuel | The designation, pushed by right-wing think tank ALEC, allows fossil fuel firms to compete for clean energy funding. (www.motherjones.com)
submitted 3 days ago by [email protected] to c/[email protected]
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[–] [email protected] 5 points 2 days ago

https://iopscience.iop.org/article/10.1088/1748-9326/ace3db

at 2% leakage rates, NG is as impactful in GHGs as coal when scrubbed at moderate efficiency for SO2. Most (by small margin) coal generators use scrubbers.

US "upstream" (wells + pipelines) infrastructure leaks more than 1%, and combustion/valves/compressors, and just satellite measurements of upstream infrastructure measures at least 2% accross US.

LNG exports to Europe (less than Asia due to shorter distance) adds 40%+ to emissions just from liquefaction process, with more energy/leakage from defrosting and local pipelines, relative to domestic coal alternatives. Specialized ship building and LNG plant construction also means more emmissions in related infrastructure.

NG does make far less local air pollution, mostly because SO2 scrubbers suck, but NG is not green energy, and its emissions are not properly accounted for.