erm, this doesn't disprove or even challenge the science behind AGW. It does say that carbon trading is open to abuse, a point that I know merrick has made himself, repeatedly.
Corporations are exploiting carbon trading for profit? Well duh. What else do you expect to happen?
Companies are exploiting carbon trading, therefore the scientific basis for anthropogenic global warming is hereby debunked?
That's a bit like saying Boeing were behind the 9/11 attacks because they got the contract to replace the planes.