Today’s EarthDesk Sunday is the official beach warning sign of Guam. During the last two weeks, EarthDesk featured stories about some of the many polluted beaches and swimming areas in states the U.S. Environmental Protection Agency does not include in its database of beach advisories. But USEPA does include American territories. On July 11, Guam EPA posted 10 beach closures. They did not appear on the USEPA site.