 Polar bears are no more likely to actively hunt and kill people than black bears, but they are more likely to attack near towns, especially when food is nearby. So Churchill did the smart thing, and they've just moved their garbage dump indoors. Now the bears can't even get to it. They also installed residential bear-resistant bins, so no polar bear with late-night munchies in this town gets any rotten food rewards. Churchill continues to evolve their waste management because it's key in coexistence, but not everywhere can do what Churchill's done, so we need more options.