Cindy Peterson, Liberty Park Community director, speaks at a tree planting ceremony in honor of Earth Day and Arbor Day at Joint Base Andrews, Md., April 20, 2016. JBA received its 16th Tree City Award from the National Arbor Day Foundation and celebrated the 40th Anniversary of the Tree City Program. (U.S. Air Force photo by Senior Airman Joshua R. M. Dewberry/RELEASED)