Martin Luther King Jr. Day is a National Day of Service. Learn why volunteering for MLK Day matters and how to host or join a litter cleanup or restoration project with SOLVE on January 19, 2026.

Every month, in neighborhoods, parks, riversides, and coastal stretches, dedicated SOLVE event leaders create space for their communities to come together. Their recurring cleanups, restoration projects, and farm days keep our natural spaces healthy while nurturing relationships and local pride. Volunteers return to familiar places, see familiar faces, and build on the impact they’ve made month after month, strengthening both their communities and the environment they care ab

After a summer-long effort to stop debris from flowing downstream and harming wildlife, keeping our waterways cleaner and safer for everyone, SOLVE's Waterway Cleanup Series wrapped up in October.