What in the world are they spraying?

So, you need to be blind, or too distracted by your iPhone and the TV show Glee to notice that everyday many airplanes are spraying across the sky every hour. It never use to be like this, maybe once in a while but I've been paying attention and its happening everyday now. It concerns many people and some people are actually taking action! This is a trailer for a web documentary which is set to release this summer. Check out the trailer above and i'd love to hear your thoughts.