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 ...

Thirty years ago, a group of scientists planted 4,200 seeds of the rare Pitcher’s thistle in the sandy dunes of the Great Lakes. Three decades later, the plants are thriving.

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 ...