<http://schema.org/alternativeHeadline>
"The extra melt caused by subglacial volcanoes could lubricate the ice sheet from beneath, speeding up the flow of water back into the sea."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/hidden-volcanoes-melt-antarctic-glaciers-from-below>