The town of Churchill, Manitoba, is counting on that to continue. The mostly Indigenous community, pulled out of economic doldrums by polar bear tourism, faces the prospect of a dwindling number of bears because of climate change. So it is counting on another white beast, the beluga, to come to the rescue and entice summer tourists — if the sea mammals can also survive the changes to this gateway to the Arctic.

There’s something healing about belugas. Just ask Erin Greene.

Greene was attacked by a polar bear in 2013. She doesn’t like to go into details about the attack, but Mayor Mike Spence said she was thrashed by a bear which had her in its jaws. A neighbor hit the bear with a shovel, and a third person used a truck to scare off the bear, which was later found and killed. Years later, Greene said contact with the sociable whales helped pull her out of post-traumatic stress disorder. Now she goes out in the water with them, on a paddleboard, and sings to and with the whales. She also rents paddleboards to tourists, so they can do the same.