How did a lanky Danish vegetarian who wears T shirts to important meetings and votes only for left-wing politicians become the great Satan of environmentalism? By telling everyone he is an environmentalist but sounding like the opposite. "We are not running out of energy or natural resources," writes Bjorn Lomborg, 37, an associate professor of statistics at Denmark's University of Aarhus and a former member of Greenpeace, in his 1998 book The Skeptical Environmentalist. "Air and water around us are becoming less and less polluted. Mankind's lot has actually improved in terms of practically every measurable indicator."
The book, which was...