Join more than 3,500 volunteers to help keep the Milwaukee River clean in this annual Earth Day event. In 2015, volunteers removed 70,000 pounds of trash from the river. Milwaukee Riverkeeper will provide bags, gloves and T-shirts. You provide the hard work to keep Milwaukee and its water systems clean. After the river is cleared, volunteers are welcome to join in the “Trash Bash” 12-2 p.m. at Estabrook, Hoyt or Pulaski parks.
9 a.m. to 12 p.m. April 23 at various locations, Milwaukee. Free. milwaukeeriverkeeper.org.