“A spring heat wave like no other in U.S. and Canadian history peaked in intensity yesterday, during its tenth day. Since record keeping began in the late 1800s, there have never been so many temperature records broken for spring warmth in a one-week period—and the margins by which some of the records were broken yesterday were truly astonishing. Wunderground’s weather historian, Christopher C. Burt, commented to me yesterday, ‘It’s almost like science fiction at this point.'”