<http://schema.org/url>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/who-says-heroes-have-to-be-human-us-trees-save-more-than>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/who-says-heroes-have-to-be-human-us-trees-save-more-than>