glaciers

Billions of people rely on glaciers for drinking water, hydropower and irrigation. A raft of new research suggests there is less ice left than previously thought.

At least 140 people are missing after a hydroelectric dam near the glacier was swept away in a deluge of water, rock and debris. "It came very fast. There was no time to alert anyone," a witness said.

Warmer temperatures are causing glaciers to melt in places like Antarctica and Greenland. What’s in those glaciers may have a significant effect on…