This is a movie produced by Geoengineeringwatch.org. It explains in fascinating detail what has been going on for decades and how our own government (you know, the Of the people, bu the people and for the people - that government) is complicit. It is not hyperbole to say that left unchecked, if we don't stop this now, we are heading for extinction.
This movie is just under 2 hrs long. However, unless you are an expert on this subject already, this will be time well spent.