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Hope on Climate Change? Here's Why

Author: Michael J. Gerson, Roger Hertog Senior Fellow
August 15, 2007
Washington Post

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In the field of environmentalism — where brows tend to be frozen in furrow and despair is a professional credential — Gregg Easterbrook of the Brookings Institution is notable for his optimism. And one cause of his sunniness is smog in Los Angeles.

In 1975, Los Angeles exceeded the ozone standard 192 days out of the year — meaning the choking smog was so bad that children, the elderly and the infirm were better off avoiding the risky practice of outdoor breathing. In 2005, the ozone standard was exceeded on just 27 days. Los Angeles has had 30 years of consistent improvement in reducing smog.

As conservatives would expect, these gains were largely the result of technology — the catalytic converter in automobiles and reformulated gasoline — and not by pedaling to work or undoing the Industrial Revolution. Smog was reduced mainly by innovation, not austerity.

But liberals are correct about something else: This technological progress would not have taken place as a result of the free market alone. Easterbrook argues that as long as producing pollution is a free good — without cost to the polluter — there is little economic incentive to produce new methods to restrict it. Federal and state regulations on auto emissions and air quality created an environment in which the invention of new technologies was economically necessary.

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