There’s a new term for nature’s ecological services: Green Infrastructure. These green systems are beginning to replace “gray” systems in cities like Seattle. Green infrastructure can be restored wetlands, rooftop gardens, or permeable pavement that trap and filter pollutants before water flows into streams and rivers and is carried to bays and estuaries. A recent article by journalist Jim Robbins posted on Environment360 profiles Seattle as an early adopter of green infrastructure as the city works to clean up its air and water using lower cost, natural methods. At THI we advocate for Restoring Nature’s Water Filter  in our work to preserve and restore freshwater resources. Read more: http://e360.yale.edu/feature/with_funding_tight_cities_are_turning_to_green_infrastructure/2564/