this post was submitted on 03 Jun 2024
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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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Leaded fuel still used in small private planes in UK (2022) (www.bloomberg.com)
submitted 5 months ago by AnarchistArtificer@slrpnk.net to c/climate@slrpnk.net
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Unpaywalled archive link: https://archive.ph/TDGsk Open Access link to the study mentioned: https://onlinelibrary.wiley.com/doi/full/10.1002/puh2.27

Posting because I saw another post on this community about Extinction Rebellion UK blocking a private jet airport today (June 2024) (https://extinctionrebellion.uk/2024/06/02/climate-activists-blockade-farnborough-private-jet-airports-three-main-gates/) and wondered how many people know that leaded fuel is still pretty common in planes, both in the UK and elsewhere; I was pretty shocked when I first learned this

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[–] rtxn@lemmy.world 23 points 5 months ago (1 children)

There are already multiple unleaded aviation fuels in testing, and one (G100UL) commercially available. The main barrier is that the engines, especially larger and older ones, are not designed to run on unleaded fuel, and must be certified.

[–] OminousOrange@lemmy.ca 7 points 5 months ago (1 children)

Right, hopefully G100UL can replace 100LL reasonably quickly, but there's a big difference between "commercially available" and actually available. I imagine it will be quite some time until it's commonplace for GA aircraft, unfortunately.

[–] ephemeral_gibbon@aussie.zone 0 points 5 months ago

If they aren't absolutely essential for some important societal function the aircraft should just be grounded rather than be allowed to fly on leaded. No one's toy or joy ride should be giving thousands of people lead poisoning