Clark County’s Composter Recycler program is offering a series of free workshops about composting and sustainable living strategies. The next workshop is “Worm Bin Composting,” from 6-7:30 p.m. May 28 at Cascade Park Community Library, 600 N.E. 136th Ave., Vancouver. Learn how to compost using red worms to turn food scraps into all-natural fertilizer. Participants will be eligible for a worm bin, bedding and worms at no cost. Register at clarkcountycomposts.org/classes-and-workshops/current-offerings.