I’m old enough to remember when scientists issued alarms over a coming Ice Age that would wipe out life on Earth on a massive scale. Senator John Barrasso’s memory holds up pretty well, too, and he reminded everyone of the consensus in the 1970s that the climate had begun to cool so significantly that, er, the world needed massive government interventions in energy production and consumption to survive it. Barrasso quotes from Newsweek and Time articles of the period. Senator Tom Udall attempts to ride to EPW Chair Barbara Boxer’s rescue by introducing an article that claims the global-cooling consensus...