People often don’t think of forests, wetlands, coral reefs, and other natural ecosystems as forms of infrastructure. But they are. Forests, for instance, can prevent silt and pollutants from entering streams that supply freshwater to downstream cities and businesses. They can act as natural water filtration plants. As such, they are a form of “green infrastructure” that can serve the same function as “gray infrastructure,” the human-engineered solutions that often involve concrete and steel. Read More
