"David Sive, Esq."@en . . "David Sive (September 22, 1922 \u2013 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."@en . . . . "Sive, David"@en . "American environmentalist" . "1922Z"^^ . "2014Z"^^ . . . . "1922-09-22Z"^^ . . "2014-03-12Z"^^ . . .