[klyrs]

No, they aren't. Aerial spraying is used in agriculture, by crop-dusting planes flown at low altitude. This is how pesticides are delivered, in small and large treatments.

Contrails are real. They're a cloud formation caused by engine exhaust at high altitude.

Chemtrails are a stupid conspiracy theory wherein contrails are imagined to be chemical sprays. If spraying was done at such high altitudes in California, most of it would end up in the ocean, or perhaps the Rocky Mountains.

The conspiracy theory "works" because it conflates an unintuitive physical phenomenon with a known-bad prior government action. But in reality, it relies on deep ignorance of physics.

[dekhn]

aren't contrails still Bad?

from https://blog.google/technology/ai/ai-airlines-contrails-clim...

"""Contrails — the thin, white lines you sometimes see behind airplanes — have a surprisingly large impact on our climate. The 2022 IPCC report noted that clouds created by contrails account for roughly 35% of aviation's global warming impact, over half the impact of the world’s jet fuel."""

[soco]

Yeah and it's called pollution, which is why some are advocating we just fly less to Cancun, Malle or anywhere else.

[ge96]

> contrails

usually it's the engine exhaust right

[klyrs]

Whoops, you're right. Corrected.