Polar bears losing crucial sea ice: Study
![](http://admin.indiaenvironmentportal.org.in/files/polar_b.jpg)
"Their dependence on sea ice means that climate warming poses the single most important threat to (polar bears') persistence," wrote the team.
Publication Date:
15/09/2016
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"Their dependence on sea ice means that climate warming poses the single most important threat to (polar bears') persistence," wrote the team.