Well, in global warming you have the big scam, which is global warming itself, then you have smaller scams like carbon trading and the mafia ripping off billions of Euros. We now have allegations that one (besides Al Gore) has been discovered in the United States and London, UK. Per the South Florida Business Journal……
The U.S. Securities and Exchange Commission said Friday it charged seven people with operating a pump-and-dump stock scam in 2006 and 2007 that purported to provide products and services to fight global warming.
The company was called CO2 Tech Ltd., which was purportedly based in London and traded on the Pink Sheets. The SEC said money was laundered through a Costa Rican asset protection company, Red Sea Management Ltd.
You can read all about it at the source: South Florida Business Journal