Oprah Winfrey was voted the greenest female celebrity in an Earth Day poll, the New York Daily News reports. Leonardo DiCaprio beat out Brad Pitt and Bono for the No. 1 male spot in the survey by GreenDaily.com and Bebo.com. On the other hand, Mariah Carey is least green, joining other laggards like John Travolta, who owns a fleet of private jets.
Carey sank to the bottom by regularly flying her personal trainer from New York to St. Bart's: "People saw that as an extravagance rather than a necessity and the consequences for the planet probably don't justify it," said GreenDaily.com's editor-in-chief.
(Read more Earth Day stories.)