Harold Lewis

Harold ("Hal") Warren Lewis (born October 1, 1923 – May 26, 2011) was an American Emeritus Professor of Physics and former department chairman at the University of California, Santa Barbara (UCSB). He was chairman of the JASON Defense Advisory Group from 1966 to 1973, and was active in US government investigations into safety of nuclear reactors.

In his 1990 book ''Technological Risk'' he warned of the risks of global warming. In 2010, after 67 years of membership, he resigned from the American Physical Society, citing what he saw as "the global warming scam, with the (literally) trillions of dollars driving it”. Provided by Wikipedia