Critics: Polar bear plan must fight global warming (AP)

Polar bear cub Wilbaer stands next to his mother Coprinna in their enclosure at the Wilhelma zoo in Stuttgart during his first appearance April 16, 2008. (Alex Grimm/Reuters) AP - Conservation groups returned to court to challenge Bush administration efforts to help save the polar bear, saying federal officials' refusal to include steps against global warming violates the Endangered Species Act.