FILE - In this April 10, 2007 file photo, Puma sports shoes are displayed for sale in front of the company sign at a store in Munich, southern Germany. How big is your sneaker’s carbon footprint? In... more 
FILE - In this April 10, 2007 file photo, Puma sports shoes are displayed for sale in front of the company sign at a store in Munich, southern Germany. How big is your sneaker’s carbon footprint? In a quest to find out, sportswear giant Puma’s chairman, Jochem Zeitz, helped develop the Environmental Profit & Loss Account, or EP&L, a balance sheet that assigns a dollar figure to the environmental costs inflicted at every step of the manufacturing process that transforms rubber, cotton, leather and other materials into the brand’s iconic soccer shoes, track suits and jerseys. Proponents hope that assigning monetary values to resources will help put the brakes on unfettered development. (AP Photo/Christof Stache, File) less 
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Associated Press | Photo By Christof Stache, File
Sat, Jun 23, 2012 2:50 PM EDT