From The Economist Blog Free Exchange:
” STEVEN LEVITT, Freakonomist, can expect an angry letter from Greg Mankiw. At Mr Levitt’s New York Times blog today, he says:At least some choices are beyond reproach environmentally. It is clearly better for the environment to walk to the corner store rather than to drive there. Right?
Now even this seemingly obvious conclusion is being called into question by Chris Goodall via John Tierney’s blog. And Chris Goodall is no right-wing nut; he is an environmentalist and author of the book How to Live a Low-Carbon Life.” Read more from Free Exchange