Some great movies linked by commenters in this thread.

I'll add another one. Dane Wigington runs the website www.geoengineeringwatch.com on chem trails and weather modification.

He released a movie two years ago called "The Dimming" regarding the phenomena of there literally being less sunlight reaching the planet relative to a few decades ago. This is something that is generally agreed upon by mainstream scientists but they're not aligned on the cause.

Wigington asserts that it's due to atmospheric modification by the shadow goverment: https://www.youtube.com/watch?v=rf78rEAJvhY

For those of you who are skeptics on chem trails and weather modification, I understand. Years back I was very skeptical as well. But the evidence is enormous that an entity is engaging in spraying dangerous chemicals into the air in the United States and Europe.

There are also dozens of patents by governmental entities that focus on weather modification.

For some reason, they are altering the planet without telling the citizenry. As to what that reason is, there's a lot of debate.