http://theconversation.com/when-corporations-take-credit-for-green-deeds-their-lobbying-may-tell-another-story-98988

Once uncommon but now mainstream, this show of support for a greener and kinder business model might seem like a clear step forward. But many of these same companies are quietly using their political clout, often through industry trade associations, to block or reverse policies that would make the economy more sustainable. And because public policy raises the bar for entire industries, requiring that all businesses meet minimum standards, lobbying to block sound public policies can outweigh the positive impact from internal company initiatives.