On Earth Day, it’s worth reflecting on the fact that planetary stewardship and affluence go hand-in-hand around the world. At the national level, the world’s poorest nations are environmental disasters, while the most affluent—the United States and Australia come to mind—are among the cleanest and most efficient.
We weren’t always this way. In the 1950s, the air in Pittsburgh resembled that of modern Beijing, where the rush for economic development demanded by the populace trumps air quality—for the time being. When a certain level of affluence is reached, as is beginning to occur in Beijing, people will be willing to pay to clean things up.
In the United States, the scrubbing of Pittsburgh was just the beginning, followed by tighter regulation of water quality, increasing affluence and (“The Population Bomb” notwithstanding) a major drop in resident fecundity. Free Europe, a bit behind us economically, followed about ten years later. When they have the green, people get green.