Related topics: climate change · sea ice · ice sheet

The narwhal's tusk reveals its past living conditions

Every year, a new growth layer is added to the narwhal's spiraled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental ...

Can polar bears and narwhals cling on as the ice shrinks?

As part of the Journal of Experimental Biology's Special Issue dedicated to climate change, Anthony Pagano (San Diego Zoo Global, USA) and Terrie Williams (University of California, Santa Cruz, USA), discuss the impact of ...

Biggest North Pole mission back from 'dying Arctic'

Researchers on the world's biggest mission to the North Pole returned to Germany on Monday, bringing home devastating proof of a dying Arctic Ocean and warnings of ice-free summers in just decades.

Arctic odyssey ends, bringing home tales of alarming ice loss

The biggest Arctic expedition in history will return to the German port of Bremerhaven on Monday after a year-long mission, bringing home observations from scientists that sea ice is melting at a "dramatic rate" in the region.

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