In celebration of the 51st annual Earth Day, Rotary District 5150, serving Marin, San Francisco and San Mateo counties, will host “Rotary Day of Service: Protecting the Environment” on April 9. Rotary will host different activities to raise awareness of environmental challenges and discuss solutions in each of the three local counties it serves. For more information and to register, visit rotary5150.org/page/dayofservice.