<http://schema.org/alternativeHeadline>
"Earth now has five or six major ocean garbage patches, and new research suggests they'll continue growing for 'at least the next thousand years.'"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/blogs/sea-trash-spiraling-out-of-control-study-finds>