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.
Due to his findings that some areas of Antarctica experienced cooling between 1964 and 2000, his research has been frequently used by those who oppose the global warming theory, including Ann Coulter and Michael Crichton.