Refuse Refuse SF is organizing an All Day Earth Day Cleanup on Tuesday 4/22 from 9am – 5pm.  Here’s their announcement:

April is Earth Month, which inspires many people to engage in activities to help protect the planet, including of course cleanups. San Francisco being an epicenter for environmental causes, is once again hosting SF Climate Week that is filled with a wide variety of events focused on climate solutions. Refuse Refuse is a part of it and we're rallying the community to take part in our All Day Earth Day Cleanup on Tuesday, April 22 from 9am-5pm. We'll be pulling a wagon full of cleaning supplies along a route that will take us from City Hall along Market St to the Ferry Building and back along Folsom St to City Hall. The schedule of intersections where you'll find us is on this registration page; come meet us at any point and help clean for as much time as you have. Feel free to bring your friends, family, coworkers, pets, and even strangers off the street; all are welcome as always!