The frozen pack ice in the Arctic Ocean makes it one of the most inaccessible ... A site like this can be accessed only by an ice-breaker or by air.

The Polar Explorer Ice Breaker is a unique vessel designed not to sail on open water but to cut through thick layers of ice.

This summer, onboard an expedition to the Arctic Ocean, she and colleagues could indeed witness that the Arctic sea ice ...

The climate warms fastest in the Arctic. The sea ice there has become so thin that we could already see the first day without ...