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President Bush's primary science advisor, Dr. John H. Marburger, supports anthropogenic global warming.<ref>BBC: [http://news.bbc.co.uk/2/hi/science/nature/6994760.stm "Bush aide says warming man-made"]</ref> A number of key Republicans support taking action to combat global warming as well, including President George W.Bush. <ref>White House; [http://www.whitehouse.gov/news/releases/2008/04/20080416-7.html Fact Sheet: Taking Additional Action to Confront Climate Change]</ref>