I've been watching this unfold in our skies for the last 7 years. When I first heard about it I would get less than a hundred Google hits. Now, it's 400,000+.
Delusion? I don't think so. Now the science is being done. Aluminum and barium are saturating our air, water and soil and this is the tip of the proverbial (melting?) iceberg. Forest decline; birds, bats, and bees falling from the sky; and more. Look into it and look up! (Some of this is truly wacko. Don your "sorting hat".) See the slide show at Strange Days, Strange Skies.