Peter Doran, Ph.D. is Professor of Earth and Environmental Sciences at the University of Illinois at Chicago. Doran specializes in polar regions, especially Antarctic climate and ecosystems. Doran was the lead author of a research paper about Antarctic temperatures that was published in the journal Nature in January 2002. Because he and his colleagues found that some parts of Antarctica had cooled between 1964 and 2000, his paper has been frequently cited by opponents of the global warming theory, such as Ann Coulter and Michael Crichton. In an opinion piece in the July 27, 2006 New York Times, Doran characterized this as a "misinterpretation" and stated, "I have never thought such a thing ... I would like to remove my name from the list of scientists who dispute global warming." Doran and his grad student Maggie Kendall Zimmerman also published a paper in the Jan 27, 2009 issue of EOS showing that active climate researchers almost unanimously agree that humans have had a significant impact on the Earth's climate. Both an Antarctic stream and glacier were named for Doran by the U.S.