"The truth, however, is that cutting greenhouse gas emissions is affordable as well as essential. Serious studies say that we can achieve sharp reductions in emissions with only a small impact on the economy’s growth. And the depressed economy is no reason to wait — on the contrary, an agreement in Copenhagen would probably help the economy recover.
[...]
The Congressional Budget Office has estimated that by 2050 the emissions limits in recent proposed legislation would reduce real G.D.P. by between 1 percent and 3.5 percent from what it would otherwise have been. If we split the difference, that says that emissions limits would slow the economy’s annual growth over the next 40 years by around one-twentieth of a percentage point — from 2.37 percent to 2.32 percent".
Read Krugman's piece in the NYTimes here.
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