John R. Christy is a climate scientist whose chief interests are global climate change, satellite sensing of global climate, and paleoclimate. He is best known, jointly with Roy Spencer, for his version of the satellite temperature record. He is a professor of atmospheric science and director of the Earth System Science Center at the University of Alabama in Huntsville (UAH). He was appointed Alabama's State Climatologist in 2000. Wikipedia
The definitive Wikipedia entry for John Christy. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/John_Christy