Canada's 'Gentle Giants' Await Vanishing Winter Polar bears, North America's largest land carnivores, are 10 percent thinner and have 10 percent fewer cubs than they did 20 years ago. Scientists say the culprit is climate change. http://www.nytimes.com/2000/11/12/world/12BEAR.html [or try http://partners.nytimes.com/2000/11/12/world/12BEAR.html if worried]
