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.

Pope Benedict XVI and President Shimon Peres

Pope Benedict XVI and Israeli President Shimon Peres (L) plant a tree during a tour the garden of the Presidential Residence in Jerusalem, Monday, May 11, 2009. (UPI Photo/Oded Balilty/Pool)

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Prince Harry of Britain helps plant a tree during an official naming of the British Garden at Hanover Square in New York on May 29, 2009. (UPI Photo/Chris Hondros/Pool)

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Britain's Prince Charles helps to plant an Eastern Redbud tree with Nicole Pendergrast, 7, and Kenan Dunson, both from Washington, D.C., at Common Good City Farm in Washington, D.C. on May 3, 2011. UPI/Kevin Dietsch

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Prime Minister of Japan Yasuo Fukuda and U.S. President George W. Bush

Prime Minister of Japan Yasuo Fukuda (L) welcomes U.S. President George W. Bush to a tree planting ceremony at the Windsor Hotel Toya Resort and Spa during G8 Summit in Toyako, Japan on July 8, 2008. (UPI Photo/Alex Volgin)

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