The value of carbon footprinting and labelling lies in identifying these sorts of savings, rather than informing consumers or making companies look green.
碳足迹和标签的价值在于鉴别这种节省，而不只是让消费者知情或者使生产商看起来更环保些。
2
Dr Blewett said he believed a range of companies would voluntarily use traffic light labelling on their products, not just those that could display a green mark.
凯特博士相信一些公司会愿意在他们的食品上使用“红绿灯”标签办法，而不仅仅是在产品上贴一个绿色标签。
3
The report used the red, amber and green colour coding from the labelling criteria to show whether levels of salt, sugar, fat and saturated fat per 100g are high, medium or low.