Joseph Bast, president of the Heartland Institute, wrote an opinion piece that appeared in today’s Philadelphia Daily News, asking readers whom they would believe, Al Gore or scientists.

It is interesting to observe that the cadre of scientists Bast refers to as proof that Gore is wrong seems to be getting smaller and their collective expertise in the area of climate change continues to diminish as more and more jump off the climate denial bandwagon. For instance, Bast claims Tim Ball, former professor at the University of Winnipeg, to be an “expert” on climate change, when in fact Dr. Ball has not published any research in a peer-reviewed science journal in the last 20 years.

All this becomes even more questionable when you question the source of this article, Joseph Bast himself.