From The New York Times:
FIRST we said they were ruining their health with their bad habit, and they should just quit. Then we said they were repulsive and we didn’t want to be around them. Then we said they were costing us loads of money — maybe they should pay extra taxes. Other Americans, after all, do not share their dissolute ways.
Cigarette smokers? No, the obese.
Last week the list of ills attributable toobesity grew: fat people cause global warming. This latest contribution to the obesity debate comes in an article by Sheldon H. Jacobson of the University of Illinois at Champaign-Urbana and his doctoral student, Laura McLay. Their paper, published in the current issue of The Engineering Economist, calculates how much extra gasoline is used to transport Americans now that they have grown fatter. The answer, they said, is a billion gallons a year.
More here.