New research exposes the delicate balance between human intervention and natural forces such as desertification shaping the fate of these vital ecosystems.
The frozen Zanskar River gleams in the chilly Himalaya Mountains during the winter. Many ice painters have transformed this already stunning environment into something much more breathtaking.
Seismic activity from an underground volcano near Tokyo has resurrected two dozen "ghost ships" from the Pacific Ocean's depths, sunk after one of World War II's most renowned engagements.