Changes

{{main|Global warming controversy}}

{{main|Global warming controversy}}

Activists from the  [[Center for Biological Diversity]] claim that "... the primary threat to polar bears is global warming", although scientists assert that the polar bear population is stable or increasing.

Activists from the  [[Center for Biological Diversity]] claim that "... the primary threat to polar bears is global warming",<ref>[http://www.iht.com/articles/2006/12/28/news/bear.php Melting arctic ice pushes polar bear population closer to the edge: Activists see animal as a global symbol], ''International Herald-Tribune''</ref> although scientists assert that the polar bear population is stable or increasing.

==References==  

==References==