Stories from 2021: Black bears in Pa.; Dragonflies on the Ohio; DumpBusters in Pittsburgh

Summary: We feature environmental stories that gave us hope in 2021. We head into the woods to learn about Pa.’s black bears. We join a crew cleaning up trash at an illegal dump site. Plus, we hear from the director of a nonprofit focused on bringing fresh produce to people, and researchers who found an indicator of good water quality in the Ohio River.