David Sive ( September 22 , 1922 -- March 12 , 2014 ) was an attorney , environmentalist , and professor of environmental law , who has been recognized as a pioneer in the field of United States environmental law .
David Sive ( September 22 , 1922 -- March 12 , 2014 ) was an American lawyer , environmentalist , and professor of environmental law . He is recognized as a pioneer in the field of United States environmental law , and is credited with helping create the field of environmental law .