Mrs. Laura Bush is joined by, from left, U.S. Department of Agriculture Secretary Mike Johanns; John Rosenow, president of the National Arbor Day Foundation, and Andy Taylor, chairman and CEO of Enterprise Rent-A-Car, as they plant White Pine saplings Thursday, October 11, 2006, during a ceremony for the Enterprise 50 Million Tree Pledge in St. Louis, Missouri. Enterprise Rent-A-Car donated $50 million to the National Arbor Day Foundation to plant 50 million trees in National Forests over the next 50 years. The White Pine saplings planted at the ceremony will be re-planted permanently in the Mark Twain National Forest in southern Missouri. White House photo by Shealah Craighead