The Heartland Institute is distributing an article titled "500 Scientists with Documented Doubts of Man-Made Global Warming Scares" that lists a number of University of Arizona scientists as doubters of human impacts on climate change, including Jonathan Overpeck. The problem is that Peck [right] as he is called, is one of the principal authors of the IPCC climate change study that won the Nobel Peace Prize and is a leading expert on human-induced global warming. Dozens of others on the list are demanding their names be removed or are threatening legal action, according to DeSmogBlog.com. Heartland Institute recently held the 2008 International Conference on Climate Change in New York, which was widely viewed as a major gathering of climate change skeptics.