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 world’s tallest freshwater sand dunes are found in Michigan, attracting tourists from around the globe to play in the sand and splash in Great Lakes waters. State officials are currently working ...

Belgium is trialing “dune-by-dike” systems as a nature-based defense against storm surges and sea-level rise, using engineered sand dunes in front of existing dikes to create a double buffer along ...