Foods 'should label up eco-costs' By Jennifer Carpenter Science reporter, BBC News, Liverpool Food packaging could be embedded with computer chips that instantly link your phone to an on-line sustainable food guide, a UK conference has heard. The guides would help consumers navigate their way through the ethical and ecological decisions about what they eat, the proponents argue. The UK should lead Europe on this approach, food policy expert Professor Tim Lang said. He was speaking at the British Association Science Festival. Ethical impact The criteria used to judge food sustainability are still up for debate. "Do I eat green...
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