Polar bears losing crucial sea ice: study

Life-sustaining sea ice needed for hunting, resting and breeding is declining in all 19 regions of the Arctic inhabited by the speciesPolar bears are losing life-sustaining sea ice crucial for hunting, resting and breeding in all 19 regions of the Arctic they inhabit, a study warned on Wednesday.
As climate change pushes up Arctic temperatures, ice is melting earlier in spring and refreezing later in autumn, a team of researchers reported in the Cryosphere, a journal of the European Geosciences