>>>http://biz.yahoo.com/prnews/061109/nyth021.html?.v=71
>>>
>>>By couple of Amospheric Physicists.
>>
>>Actually only one, the other guy is an economist.
>>
>>Fred Singer, in addition to denying human caused global warming, he also denies:
>>- ultraviolet radiation causes skin cancer
>>- second hand smoke causes lung cancer
>>- CFC's deplete the ozone layer
>
>Hi Evan
>Can't comment on any of that since I haven't read his paper on them, other then what others have submitted to Wikipedia. He must have his reasons. But can't argue about his academic background or his professional background.

He reason is that he makes tons of money being a professional skeptic. He doesn't prove things, but raises doubts.