Nellis celebrates Earth, Arbor Days
Lt. Col. Brian Hartless, 99th Civil Engineer Squadron commander, provides opening remarks during the Earth and Arbor Day 2015 celebration at Nellis Air Force Base, Nev., April 20, 2015. The annual celebration ceremony was held to show the installation is committed to the development of renewable energy through pollution-prevention efforts, energy conservation, and sustainability. (U.S. Air Force photo by Airman 1st Class Jake Carter)

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Photo by: Airman st Class Jake Carter |  VIRIN: 150420-F-UN699-013.JPG