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 ...

The sand is hard at the water’s edge. South of Florence, on the Oregon Coast, you can walk the beach for miles and barely leave an imprint. Dig holes, build castles, turn somersaults, your meager ...

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 ...