this post was submitted on 10 May 2025
1353 points (98.8% liked)

memes

14820 readers
5123 users here now

Community rules

1. Be civilNo trolling, bigotry or other insulting / annoying behaviour

2. No politicsThis is non-politics community. For political memes please go to !politicalmemes@lemmy.world

3. No recent repostsCheck for reposts when posting a meme, you can only repost after 1 month

4. No botsNo bots without the express approval of the mods or the admins

5. No Spam/AdsNo advertisements or spam. This is an instance rule and the only way to live.

A collection of some classic Lemmy memes for your enjoyment

Sister communities

founded 2 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] Lucien@mander.xyz 6 points 1 week ago (1 children)

Well, it's not jet exhaust you're seeing, though.

I did acknowledge that, by the way. Jet fumes certainly contribute to global warming. I wasn't intending to imply they don't. Simply that it's not jet fumes you're seeing in contrails.

[–] Deme@sopuli.xyz 3 points 1 week ago (1 children)

I will convolute this conversation further by stating that contrails (like all other clouds consisting of ice crystals) warm up the planet by letting shortwave radiation from the Sun through while being more reflective in longer infrared wavelenghts, thus trapping outgoing longwave radiation. Contrails themselves are also warming the planet up. It's a small contribution in the grand scheme, but far from a trivial one.

[–] Initiateofthevoid@lemmy.dbzer0.com 1 points 1 week ago* (last edited 1 week ago) (1 children)

It’s a small contribution in the grand scheme, but far from a trivial one.

~~Pretty sure it's extremely trivial compared to the exhaust gasses.~~ Edit: I'm wrong!

[–] Deme@sopuli.xyz 3 points 1 week ago* (last edited 1 week ago) (1 children)

This could've been a quick web search on your part, but here you go:

https://www.science.org/content/article/aviation-s-dirty-secret-airplane-contrails-are-surprisingly-potent-cause-global-warming

https://www.nature.com/articles/nclimate1068

Nevertheless, net radiative forcing due to contrail cirrus remains the largest single radiative-forcing component associated with aviation.

[–] Initiateofthevoid@lemmy.dbzer0.com 2 points 1 week ago (1 children)

Huh. I'm one of today's lucky 10000, so thanks! Sorry for the mistake.

[–] Deme@sopuli.xyz 2 points 1 week ago

No problem, it happens.