Join EcoAction Arlington, formerly Arlingtonians for a Clean Environment, and attend events they participate in during the year, including an upcoming Green Living Expo. They sponsor volunteer events such as stream cleanups, invasive plant removals, highway cleanups, and storm drain markings, and educational Green Living events. Special events this year included a Summer Solstice Celebration at Barcroft Park with several service project options as well as a geocaching demonstration, a high tech treasure hunt game where you use a GPS to find a hidden container.