It looks like Al Gore was right to be concerned about Polar Bears, but for the wrong reason. Here is a story about the demise of a Polar Bear as a result of there being too much ice rather than too little. It is rare for there to be enough ice for Polar Bears to make it all of the way to Iceland. Polar Bears have really good press, but they are not the cuddly creatures as they are depicted, but rather are dangerous to humans. They are opportunistic feeders, and will try to eat you get close. (They are faster and stronger than you, so your chances are not good if you get close.)

http://dotearth.blogs.nytimes.com/2008/06/05/polar-bear-shot-in-iceland-icy-spring-may-have-led-it-there/?ex=1213329600&en=8c3f95d6dc387c67&ei=5070&emc=eta1