Click on link.

http://www.msnbc.msn.com/id/24666022/from/ET/wid/18298287/?GT1=45002

"Obese and overweight people require more fuel to transport them and the food they eat, and the problem will worsen as the population literally swells in size, a team at the London School of Hygiene & Tropical Medicine says."

"Because thinner people eat less and are more likely to walk than rely on cars, a slimmer population would lower demand for fuel for transportation and for agriculture, Edwards said."