Strange things happen when the temperature sinks to 40 or 50 below zero…or even colder. Tree trunks crack, ice on rivers and lakes makes deep resonant booms, and sparks snap from fingers to door handles and light switches.
In the North summers are fleeting and winters long—up to 8 months—and brutally cold. Temperatures can plunge to minus 70 degrees. Gales make it feel even colder, and deep or drifted snow can make simply moving around an energy-draining ordeal.