Article courtesy of Samantha Larson | October 11th, 2016 | Crosscut.com | Shared as educational material.
Seattle is trying out a new but old solution in order to combat pollution from rainfall runoff. They intend to replace pavement in a certain area in the city with things like grass and soil. Unlike pavement, soil and grass can absorb rainwater and hence filter it. Moreover, the latter inhibits run-off. By contrast, because pavement cannot absorb water, most of the time, water runs down to the nearest large water source, carrying pollution with it. Read more about the solution here http://bit.ly/2evNvvO