The Arctic summer sea ice minimum also stayed low this year, at 4.28 million km² (1.65 million mi²), making it the 7th lowest minimum in the satellite record. So far, 2012 saw the record minimum ...

Melting Arctic sea ice - mostly in the summer - is making the polar bear population smaller, weaker and hungrier because they rely on the sea ice to hunt from, scientists said. And winter sea ice ...

The Arctic Ocean will be ice-free in the summer within the next 30 years, ... then refreezes each winter. Sea ice affects Arctic communities and wildlife such as polar bears and walruses.

Sea ice is frozen ocean water that melts each summer, then refreezes each winter. The Arctic is warming more than twice as fast as the rest of the planet. The study used statistical models to ...

Until recently, the steepest losses of Arctic sea ice were seen in the summer and fall. But scientists say that winter trends indicate that the sweeping changes taking place in the Arctic are ...

The Arctic Ocean’s coating of sea ice—now remarkably thin and sparse after a record-warm winter—could plummet by late summer to the lowest extent in 38 years of observations.

Arctic sea ice extent peaked at 14.62 million square kilometers (5.64 million square miles), a total area that is roughly 1.03 million square kilometers (398,000 square miles) below the 1981 ...

This warming-driven cycle helped lead to 2012’s record low summer sea ice minimum, though what happens year to year is also driven by varying weather patterns. Those patterns have played a role ...

Arctic sea ice behaves a bit like a human waistline, packing on weight in the winter and slimming down in the heat of summer. But while many of us struggle to lose weight, the Arctic has been ...

Stroeve said her time aboard the ship during the winter showed her that much of the sea ice in the High Arctic was “relatively thin second-year ice” that grew from about two feet to 6.5 feet ...

The extent of the sea ice winter maximum in the Arctic is at its fifth-lowest level since the 1970s, ... the sea ice in both the winter and summer months has been shrinking.