I'm finding it hard to know what to think, really. I've read a few sites now with comments from pilots and meteorologists about how chemtrails really could be normal contrails. They say that wind shear can cause apparent breaks in a contrail. And that under the right circumstances, a couple of planes flying through clear sky can cause cirrus clouds that eventually grow to cover the sky. What's more, I would like to know why some people seem so sure that chemtrails contain materials like aluminium and barium. Could these not be produced by other sources of pollution, like car exhaust or power stations? Finally, how could so many people keep such a perfect conspiracy for years? It would require the collusion of thousands of people, from the politicians to the mechanics who build and repair planes. Wouldn't it be likely that at least a few people would have spoken up about this by now if something was really going on?

Just trying to understand . . . If anyone has some convincing ideas about these things I'd be happy to listen.

Linda.