Great idea by researchers at @TrentUni. They're building an app that measures the carbon footprint of products http://bit.ly/12R7TLD
@AlexBlackburne - Some rule of thumb choices eg beef v chicken. Diet drinks v sugar, but C numbers accross products meaningless 4 consumers
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@MForstater Great points.Thanks. Twitter will use this to make your timeline better. UndoUndo
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