Svalbard, Norway. Frozen ocean water in the Arctic shrinks during summer as it gets warmer, then forms again in the long winter. AP
Svalbard, Norway. Frozen ocean water in the Arctic shrinks during summer as it gets warmer, then forms again in the long winter. AP
First ice-free summer day forecast for Arctic Ocean by 2030s
Under a worst-case scenario, Arctic could become ice-free for three quarters of the year, including some winter months
