Volunteers consolidate into small groups to keep track of the amount and type of trash they collect during the Earth Day cleanup on Tarague Beach at Andersen Air Force Base, Guam, April 21, 2013. Along with collecting trash, volunteers tracked the amount and brands of the waste they collected, which was sent to the U.S. Environmental Protection Agency Regions 9 for their study on sources of rubbish in oceans. (U.S. Air Force photo by Airman 1st Class Marianique Santos/Released)