this post was submitted on 21 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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“Best-case-scenario estimates — absolute best-case — are that these cloud-seeding operations are able to augment the amount of precipitation by at most 10% to 15% over very limited areas,” Swain said. “On average, it’s a lot lower than that. In fact, in some cases, it’s difficult to prove that cloud seeding does anything at all.”

Indeed, Andrew Dessler, a professor of atmospheric sciences at Texas A&M University, has gone so far as to call cloud seeding a scam — in part because it can prey on farmers and other people who are desperate for rain, and because it typically delivers only modest results, he said.

“There’s no physical way that cloud seeding could have made the Texas storm,” Dessler said, noting that the storm was fueled by extremely high levels of atmospheric water that stemmed from a tropical disturbance in the Gulf of Mexico. “This is a nonsense argument. There’s no debate here about whether cloud seeding played a role in this

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[–] homesweethomeMrL@lemmy.world 3 points 3 weeks ago