ARE POLAR BEARS THE CAUSE OF GLOBAL WARMING? 
Probably not. There was a recent rejection by the federal government on the inclusion of Polar bears 
in the endangered species list. These guys above don't seem to care. But like many humans they are oblivious to the global warming dilemma. They could die of starvation in the future if we don't give them some help. Here's some good links:

http://www.polarbearsinternational.org 

http://www.worldwildlife.org/polarbears 

http://www.polarbearsos.org