. . . . "White House Staff Secretary" . "United States Special Envoy forClimate Change" . . "American sustainability advocate" . "1951-05-04Z"^^ . "Todd D. Stern (born May 4, 1951) is the United States Special Envoy for Climate Change, leading talks at the United Nations climate change conferences and smaller sessions, appointed by U.S."@en . . . "Todd Stern"@en . "1951Z"^^ . "Stern, Todd"@en . . . .