Cap and Trade Explained (The Story of Cap and Trade)

I have little knowledge of Cap and Trade, I only know that there has been much concern over it. What I do know is, unless there is a strongly worded, accurately written, highly detailed case against something, Corporations will take advantage of any little lack detail in legislation or policy.
So here we are. Cap and Trade will likely be policy that will lead us to believe that we are taking a step in the right direction toward cleaning up the environment, and all the while it will be just another way for Corporations to make money.