November 17, 2008 2:50 pm Top 5 Green Celebrities NBC’s “The Buzz” runs down About.com’s top five environmentally-friendly celebrities: George Clooney, Cate Blanchett, Robert Redford, Cameron Diaz & Leonardo DiCaprio. Local 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 0:44 At least 5 shot along Connecticut Avenue in Dupont Circle 1:36 O.J. Simpson's cause of death revealed 2:36 Super dad makes Mario-themed obstacle course for son's birthday