Swedish design group ADDI has come up with an cutting-edge polar bear lifejacket design concept to help polar bears navigate the changes in their habitat. For the first time in history scientists are reporting that polar bears are drowning in the Arctic. One of the contributing factors is that polar bears are now forced to swim longer distances to encounter ice, and the longer swims make the creatures vulnerable to exhaustion, hypothermia and becoming swamped by ocean waves. "Polar bears are drowning because the ice is melting.