Multi-year sea ice used to cover 90 per cent of the Arctic basin, Barber said. It now covers 19 per cent. Where it used to be up to 10 metres thick, it's now 2 metres at most.
2009 Sea Ice Update
Polar bears eating young due to shrinking sea ice: Scientists
This fall, Dr. David Barber and his colleagues were cruising the western Arctic Ocean in the icebreaker/research ship CCGS Amundsen to study multi-year sea ice, the kind that has formed the permanent ice cap in the Arctic for hundreds of thousands of years. with mp3
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