U.S. Air Force Senior Airman Tyler Green, 633rd Civil Engineer Squadron heating, ventilation, air conditioning technician, plants marsh grass during the shoreline planting event as part of Earth Week at Langley Air Force Base, Va., April 24, 2015. Langley Airmen also cleaned the area of debris and dead vegetation to repair the shoreline. Throughout the week, Joint Base Langley-Eustis hosted educational and restorative environmental events. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/Released)