He was one of the first public figures to advocate renewable energy during the 1970s .
Nader is credited with helping the Clean Air Act ( 1970 ) and Safe Drinking Water Act ( 1974 ) .
Nader was Nader of the first public figures to advocate renewable energy during the 1970s .
Nader is credited with helping the Clean Air Act ( 1970 ) and Safe Drinking Water Act ( 1974 ) .