Pittsburgh will become a dark sky city in 2022
Pittsburgh will follow the International Dark Sky Association’s new values-centered outdoor lighting guidelines and switch to lower wattage LED bulbs in streetlights, bridges, and other public spaces.
Dark skies
U.S. and Canada establish first international transboundary Dark Sky Park
The Waterton-Glacier International Peace Park is a collaborative National Park established on the border between the US and Canada in the state of Montana and Alberta, just south of Calgary.