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</html><thumbnail_url>https://engineering.jhu.edu/magazine-archive/wp-content/uploads/2014/07/RDsummer200713.jpg</thumbnail_url><thumbnail_width>353</thumbnail_width><thumbnail_height>436</thumbnail_height><description>Robert M. Summers &#x2019;72 (A&amp;S), PhD &#x2019;81, had long worked to protect the environment, but on a recent canoeing trip with his teenage sons and friends down the Susquehanna River, he experienced firsthand the symptoms of polluted waters. Floating down the waterway that begins outside of Cooperstown, New York, and terminates in Maryland&#x2019;s Chesapeake Bay,...</description></oembed>
