Well, according to Watts that is.
The term chemtrail comes from the chemtrail conspiracy theory where the claim is made that some of the contrails left by aircraft are chemical or biological agents. According to this conspiracy theory these are deliberately sprayed at high altitudes as ordered by governments. The more commonly stated reasons that I’ve heard for doing this is for mind control or population reduction.
I don’t think that I have to spend much time on telling you that this is complete and utter nonsense that’s not supported by any evidence. Just the logistics involved and the amount of people who need to be in on this make it impossible to do.
The reason I’m now talking about this is that Watts published a guest blog post by Tim Ball (archived here) in which Ball talks about the nonsense of chemtrails. With Watts saying this about it in a note he attached at the beginning:
Like with the essay Saturday about isotasy/glacial rebound being a myth, I don’t think the chemtrails idea has any merit whatsoever. Dr. Tim Ball points out more bad science – chemtrails, which are really just contrails, and which has a cult-like following much like some of the worst theories of global warming zealots – Anthony
I don’t really have a problem with him publishing something that discredits this conspiracy theory. It’s what I said that he should have done with the isostatic rebound myth guest blog post that he published: