Global Warming a Scam?

When I first heard about this, it shocked me! I honestly believed in global warming and this believe followed me all my life. I saw this documentary that it might be a scam. It left me very confused and I thought to post about this to get more clarity from others. So please feel free to leave your comment. This is what I found online:

Global warming is nothing more than just another hoax, just like Y2K and the global freezing claims in the 1960’s and 70’s were. Global warming is being used to generate fear and panic. Those behind this movement are using it to control people’s lives and for financial gain. There are not many individuals, groups, or organizations willing to stand up against this fraud that is being perpetuated for fear of being persecuted, harassed and ostracized by those who support global warming within the scientific and other communities. But fortunately, a few have decided to do the right thing and take a stand against this evil, proving just how unscientifically founded global warming is and exposing those who are behind it.” 

Here are a few documentaries for further info:

The Global Warming Fraud (proves that CO is not the driver of rising temperatures)

The Convenient Truth

The Great Global Warming Swindle