Paul Krugman: How to Save the Planet, at Minimal Expense

Joe Romm, the physicist and editor of the Climate Progress blog, recently drew attention to the third slice of the latest report from the United Nations' Intergovernmental Panel on Climate Change, about the costs of global mitigation, or reducing the sources of greenhouse gases.

The panel announced earlier this month that these costs aren't that big - a few percent of gross domestic product, even by the end of the century, which means only a trivial hit to the growth rate.