BSkyB, HSBC, BT and Sainsbury's were the next highest-rated, while BP and Tesco are perceived as being the compnaies that were most likely to practice "greenwashing" - promoting a green image, but not backing it up with real action. The research was carried out by Chatsworth Communications.
The Week: Brand news - M&S heads FTSE's greenest
Marks & Spencer is the FTSE 100 company that is seen as having the greenest credentials, according to a survey of journalists, political groups and experts on sustainability.
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