I read 1/2 of the book "Angels don't play this HAARP : advances in Tesla technology " / Nick Begich and Jeane Manning, and all I can say is that the toxins found in contrails are only a very small part of the problem. They are messing with the ionosphere and the natural energy balance in the world in ways that could very well throw the world out of balance and uncapable of supporting intelligent life.

If you can read those books, they are very good.