Gregg Easterbrook gives us the lowdown on the Bali Environmental talks. His basic thesis is, “The only reason runaway global warming seems unstoppable is that we have not yet tried to stop it.”
Here’s a different way of thinking about the greenhouse effect: that action to prevent runaway global warming may prove cheap, practical, effective, and totally consistent with economic growth. Which makes a body wonder: Why is such environmental optimism absent from American political debate?
Greenhouse gases are an air-pollution problem—and all previous air-pollution problems have been reduced faster and more cheaply than predicted, without economic harm. Some of these problems once seemed scary and intractable, just as greenhouse gases seem today. About forty years ago urban smog was increasing so fast that President Lyndon Johnson warned, “Either we stop poisoning our air or we become a nation [in] gas masks groping our way through dying cities.” During Ronald Reagan’s presidency, emissions of chlorofluorocarbons, or CFCs, threatened to deplete the stratospheric ozone layer. As recently as George H. W. Bush’s administration, acid rain was said to threaten a “new silent spring” of dead Appalachian forests.
But in each case, strong regulations were enacted, and what happened? Since 1970, smog-forming air pollution has declined by a third to a half. Emissions of CFCs have been nearly eliminated, and studies suggest that ozone-layer replenishment is beginning. Acid rain, meanwhile, has declined by a third since 1990, while Appalachian forest health has improved sharply.