And the Barium and other fine particles is there to help rebuild the vapor barrier above earth that was destroyed by dark agents.. causing the 40 days of rain long ago.

They have been seriously cleaned up... there were dark shits putting bad chemicals in them. Some of those chemicals are necessary to the spreading of them.. captured water droplets which are then hauled up higher..

Vocanic explosions can do the same thing... proof in the pudding is the those blue clouds at dusk.. trying to remember their names now. Covered though on space weather.

Noctilucent clouds.. just came to me.