Picture of a scientist climbing a rope to exit a deep, vertical ice cave on a Norwegian island

Svalbard, Norway, is an archipelago near the North Pole, with terrain full of glaciers and ice caves. Here, a scientist works his way out of a deep vertical cave also called a moulin. He and his team map the caves to understand how water flows...

Picture of a scientist climbing a rope to exit a deep, vertical ice cave on a Norwegian island

Svalbard, Norway, is an archipelago near the North Pole, with terrain full of glaciers and ice caves. Here, a scientist works his way out of a deep vertical cave also called a moulin. He and his team map the caves to understand how water flows through glaciers-- which leads to sea level rise.