Earth Day: World leaders planting trees (21 images)

In celebration of Earth Day on April 22, this UPI photo collection shows leaders around the world -- from Pope Benedict XVI to Prince Harry -- who aren't afraid to get down and dirty with nature.
Updated: April 20, 2012 at 4:43 PM
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Tree planting at UN
United Nations Secretary-General Kofi Annan, left, and Japanese foreign minister Yohei Kono plant a cherry tree, right, as a symbol of peace in the Peace Bell garden at the United Nations on September 14, 2000 in New York City. rw/mg/Monika Graff UPI
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