The bears hind end was damaged, he/she may have gotten into an accident of some kind and can't hunt. He or she could be very old, they only live 15 years in the wild...It's rough out there! As for climate change, it's always changing. When I was growing up we where heading for a mini ice age.

My ex husband hunted bear and cougar with hound dogs, over in the Eagle Creek Wilderness area near Mt Hood Oregon and I grew up playing in the wilderness. Just taking a walk without being aware can get you killed. It's that way for wild animals as well. You don't live long out there, it is kill or be killed.

My family also went fishing up in Alaska, ice growth and decline has many cycles within cycles and we humans have short attention spans and don't live long enough to figure out the cycles unless our elders remember. All our elders that held that information are dead and now we have to depend on deceptive government, politicized science, and scientist that need to pay their mortgage.

What I don't like about anthropomorphic climate change is carbon credits giving those who can afford to buy credits the right to pollute. Which has nothing to do with saving the polar bear and everything to do with controlling our global markets killing off our small businesses and giving the transnational corporations a free playing field.