Pennsylvania’s freshwater ecosystems are at risk from climate change. Increased air temperatures, and the related increase of stream waters, can reduce the ability for some aquatic species to survive. After conducting a vulnerability assessment, recommended actions include identifying and protecting critical habitat and removing small dams to conserve habitat and mitigate temperature increases. 

Aging infrastructure in Pittsburgh has resulted in sewer overflows and street flooding with more frequent and intense heavy rainfall under climate change. The Pittsburgh Water and Sewer Authority (PWSA) identified priority neighborhood and designed an integrated watershed plan utilizing green and gray infrastructure to improve water quality and manage stormwater.

Located at the intersection of North Plum Street and East Walnut Street, the site of numerous vehicle accidents from a confusing merge lane, the Plum and Walnut Green Intersection Project integrated green infrastructure (GI), enhanced pedestrian amenities and a roadway realignment to improve traffic safety and reduce stormwater runoff.

Watergate Wetlands Restoration Project aimed to restore wetlands that were historically present at Delaware Water Gap National Recreation Area, and to restore the natural function of Van Campens Brook. Led by the National Park Service, the project involved draining constructed ponds and pumping water back into the brook through a sediment-blocking filter.