<http://schema.org/alternativeHeadline>
"We should be doing more to preserve the 'lungs of our planet' by investing in cleaner energy and reducing our plastic pollution."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/home-blog/guest-columnist/blogs/world-oceans-day-celebrating-and-protecting-what-connects-us>