Why are our environmental problems still growing despite a huge increase in global conservation efforts? Peterson del Mar untangles this paradox by showing how prosperity is essential to environmentalism. Industrialization drove people to look for meaning in nature even as they consumed its products more relentlessly. Hence England led the way in both manufacturing and preserving its countryside, and the United States created a matchless set of national parks as it became the world's pre-eminent economic and military power.

Environmental movements have produced some impressive results,...