ClimateWire: David and Kristen Olesen, their two daughters, and 44 sled dogs lived at a homestead at the edge of the boreal forest on a sandy peninsula at a spot where the Hoarfrost River meets the Great Slave Lake near the Arctic Circle. In the wintertime, fog rises off the river and coats spruces in moisture that crystallizes to ice in a phenomenon called "hoarfrost." Their home was 25 miles from the closest settlement of Reliance.
That summer afternoon, Kristen watched a rabbit tear out of the woods. A...