<http://schema.org/alternativeHeadline>
"The Harappan civilization likely moved east, abandoning its many cities, as rivers that were rich with monsoon water became dry."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/climate-weather/stories/indus-valley-civilization-collapsed-because-of-climate-change>