One of us read this article wrong. I understood it to say that the wackos were trying to get ExxonMobil to back Kyoto and used the point that it would cripple the coal industry as a reason why ExxonMobil should support Kyoto. ExxonMobil refused. Had your remark been directed at Enron you would have been correct.
DuPont owns patents on most of the Freon replacements which are very profitable.