Does greener really cost more?

Was reading this article in Supply Management and it linked very nicely to a discussion we are having at work about using recycled paper and whether it would cost more. Anyone got any good examples of corporate commodities where they've gone green and demonstrated reduced cost and a more sustainable impact? http://www.supplymanagement.com/news/2014/health-buyers-assume-green-purchasing-is-more-pricey?utm_source=Adestra&utm_medium=email&utm_term=