this post was submitted on 03 Jun 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.

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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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[–] OminousOrange@lemmy.ca 36 points 5 months ago (3 children)

Leaded fuel is still used in piston airplanes everywhere. While there are ongoing efforts to develop an unleaded alternative, there is none currently available to the market.

[–] 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

[–] RGB3x3@lemmy.world 3 points 5 months ago

Well it's about time they get the lead out and get the lead out!

[–] veganpizza69@lemmy.world 1 points 5 months ago (2 children)

The alternative is to ground them. Into dust (and recycle).

[–] OminousOrange@lemmy.ca 3 points 5 months ago (2 children)

What's your alternative for access and supplies to many remote communities?

[–] veganpizza69@lemmy.world -3 points 5 months ago

Same as for current lunar communities.

[–] Sizzler@slrpnk.net -3 points 5 months ago

Lol, remote and UK is about 5 Scottish islande.

[–] pewgar_seemsimandroid@lemmy.blahaj.zone 2 points 5 months ago

History should stay preserved, you want your items to be a discovery don't you.