Widespread use of GSI helps keep our lakes, rivers, and oceans clean. It improves water quality in Puget Sound and can help the ecosystem and conditions for wildlife like salmon and orcas.

The natural beauty of green stormwater infrastructure provides psychological benefits for humans and important habitat for wildlife in our increasingly paved-over and built-up cities.

The leaves and needles of trees slow the rain and allow some water to evaporate back into the atmosphere. Tree roots loosen the soil and help rain soak into the ground, and increased tree and vegetative cover reduce urban heat islands.

Rain gardens are a smart and proven way of using beautiful landscaping to protect local waterways, safeguard unique natural habitats, and improve homes and neighborhoods. They also serve to limit flooding and save millions of dollars in avoided stormwater management costs.

Job training in the design, construction, and maintenance of green infrastructure provides access and opportunities for living-wage employment.