In an article in the Guardian, a UK newspaper, George Monbiot, takes a hit on ecosystem services and natural capital.
He finds the current shift in vocabulary very worrying:
He basically argues that all the hype around these new terms and concepts carries with it the privatization of nature. He uses private ownership of land, exemplified by the enclosure of the commons, as an illustration of that privatization process.
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further reference
http://www.theguardian.com/commentisfree/2012/aug/06/price-rivers-rain-greatest-privatisation