Mashable: In a first of its kind effort, a large group of top atmospheric chemists has weighed in on one of the most persistent conspiracy theories on the internet: that the U.S. government is involved in a campaign to deliberately spray chemicals from planes at high altitudes.
This "chemtrails" conspiracy theory is bunk, the experts conclude in a new study published this week in the journal Environmental Research Letters.
Chemtrails is a conspiracy theory that pops up frequently in Reddit comment threads,...