this post was submitted on 13 Mar 2024
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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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Some states are now trying to ban lab-grown meat (arstechnica.com)
submitted 8 months ago by Diplomjodler@feddit.de to c/climate@slrpnk.net
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The "conservative" war on reality finds new depths to sink to

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[–] memfree@beehaw.org 4 points 8 months ago

Crawford said that legislators had heard from NASA, which expressed concern about the bill’s impact on programs to develop alternative proteins for astronauts. An amendment to the bill will address that problem, Crawford said, allowing an exemption for research purposes.

Opponents of the ban have said governments shouldn’t interfere with a nascent industry because of unfounded fears over safety concerns.

The carve-out for NASA doesn't make this bill any better. The bill is obviously stifling.

That said, I really do want some extra checks that whatever agar-like substrate meat is grown in does not leech excessive quantities of hormones (think: rBST) or other chemicals into the packaged product. I would happily eat lab-grown meat, but I want to know that it is well tested for safety.