<a href="http://www.intellicast.com/Community/Content.aspx?a=153" rel="nofollow">http://www.intellicast.com/Community/Content.aspx?a=153</a><p>You can look up the polar bears yourself.  You'll find that the population now is about 4-5x the population in the 60s.  It may be decreasing slightly in the past few years, but that's in the noise compared to the recent increases.  There's no reason to suspect temp change has had an effect comparable to direct intervention by humans.