Glaciers are melting faster, losing 31% more snow and ice per year than they did 15 years earlier, according to three-dimensional satellite measurements of all the worlds mountain glaciers.

Scientists blame human-caused climate change.

Using 20 years of recently declassified satellite data, scientists calculated that the worlds 220,000 mountain glaciers are losing more than 328 billion tons (298 billion metric tons) of ice and snow per year since 2015, according to a study in Wednesdays journal Nature . Thats enough melt flowing into the worlds rising oceans to put Switzerland under almost 24 feet (7.2 meters) of water each year.