It is, however, neither prudent nor decent to sacrifice the vulnerable on altars erected by the comfortable. Gates cites (without naming) a low-income country whose government, clambering aboard the cut-emissions bandwagon driven by developed nations, banned synthetic fertilizers. Gates: “Farmers’ yields plummeted, there was much less food available, and prices skyrocketed.” Progress in every sphere depends on improved health and steady economic growth. Every society that produces social surpluses for investments is dependent on fossil fuels, for which there is no near-term substitute.

Because Gates participated prominently in the overwrought reaction to the fact that humanity has an impact on its habitat, his reconsideration is especially admirable. “A foolish consistency is the hobgoblin of little minds,” said Ralph Waldo Emerson. Gates’s big mind accommodates discomfiting evidence.

Robert Poole makes the case that “America’s longest government shutdown shows why we must free air traffic control from politics.”