/tags/ice-cap ice cap en-US Copyright Fri, 02 Nov 2012 05:31:15 GMT /environment/2012-11-02/dr-ian-stirling-on-polar-bears The fate of polar bears is directly linked to their habitat, which is slowly shrinking as the result of climate change. Dr. Ian Stirling, research science… Fri, 02 Nov 2012 05:31:15 GMT /environment/2012-11-02/dr-ian-stirling-on-polar-bears