I've been skeptical about the whole chemtrail thing, but now the UK Guardian reports
"The US government wants the world's scientists to develop technology to block sunlight as a last-ditch way to halt global warming, the Guardian has learned. It says research into techniques such as giant mirrors in space or reflective dust pumped into the atmosphere would be "important insurance" against rising emissions, and has lobbied for such a strategy to be recommended by a major UN report on climate change, the first part of which will be published on Friday."
The "reflective dust" part sounds suspiciously like what so-called tinfoil-hat people called chemtrails.
Perhaps I was wrong and there is use of chemtrails.
The whole article is here: