Pennsylvania

Pennsylvania spans rustbelt cities, rural farmland, and a storied political landscape — making its progress stories varied and telling. This archive covers environmental wins, public health advances, community rebuilding, and civic efforts across the state.

Collection of plastic waste, for article on plastic recycling mill

U.S. opens one of the world’s first plastic recycling mills in Pennsylvania

Plastic recycling took an early industrial step in 1972, when a mill opened in Conshohocken, Pennsylvania, betting that discarded plastic could be reclaimed instead of buried. Workers sorted resins by hand before shredding, melting, and extruding them into pellets manufacturers could reuse. It was a small, imperfect start to a loop the world is still trying to close.