Scientists Link Wind Shift, Medieval Mega-drought in Sandhills

Today, Nebraska’s Sandhills, a region of gently rolling sand dunes blanketed with prairie grasses and wetlands that cover a quarter of the state, provide ideal habitat for wildlife and livestock. During medieval times 800 to 1,000 years ago, however, the region was a swirling desert, far worse than the Dust Bowl of the 1930s.