Green City Clean Waters: Green Stormwater Infrastructure (GSI) Overview

Stormwater is the fastest growing source of fresh water pollution in the world. Philadelphia's Green City Clean waters project aims to put green stormwater infrastructure systems--rain gardens, green roofs, residential downspout planters--all around the city to help nature do some of the work that we would do with pipes and water treatment plants. Learn how TNC is working with community partners and organizations to create access to all the benefits of nature.