Coping with Climate Change, Season 1, Episode 4, What's Causing Unusually Hot Temperatures in the U.S.?
presented by Judy Woodruff, 1946-; produced by MacNeil-Lehrer Productions; interview by Judy Woodruff, 1946-, in Coping with Climate Change, Season 1, Episode 4 (Arlington, VA: NewsHour Productions, 2012), 6 mins