In this Thursday, Oct. 24, 2019, photo, the Marsh Trail bisects a section of the Ten Thousand Islands National Wildlife Refuge in the western Everglades near Naples, Fla. Clusters of mangroves form islands in a shallow estuary. A healthy mangrove forest is important for protecting coasts during storms. (Robert F. Bukaty/AP) Picking up trash in mangrove forests has become a calling for one Florida man. Here & Now‘s Catherine Welch reports. This article was originally published on WBUR.org.