Schneider was influential in the public debate over climate change and a lead scientist on the United Nations' Intergovernmental Panel on Climate Change, which shared the 2007 Nobel Peace Prize with former Vice President Al Gore.

Stephen H. Schneider, a Stanford biology professor and a leading researcher in climate change, has died.

Schneider was flying from a science meeting in Stockholm, Sweden, to London today, July 19, when he apparently suffered a heart attack. He was 65.