The world’s tallest freshwater sand dunes are found in Michigan, attracting tourists from around the globe to play in the ...

Winds blowing over a dune can move grains of sand in three main ways. What path these grains take depends on their size, although the exact size in each category can change from site to site. Think of ...

In some places, sand dunes protect shorelines from the onslaught of ocean waves. In other places, the dunes themselves are on the move, and threaten human structures. Host Flora Lichtman talks with ...

Last summer, Stephanie McNamara got her first glimpse of Great Sand Dunes National Park and Preserve in southern Colorado. The park is a monument to sand, where dunes stretch across 30 square miles ...

The famed coastal dunes that inspired the shifting sand landscape of the desert planet Arrakis in Frank Herbert’s science fiction novel “Dune” are also under siege — from climate change and human ...