Previous Article Next Article Table of Contents Science, Vol.335, No.6069, 656-U131, 2012 DOI10.1126/science.335.6069.656-c Export Citation Ecosystem Services: Free Lunch No More Response Kinzig AP, Perrings C, Chapin FS, Polasky S, Smith VK, Tilman D, Turner BL Please enable JavaScript to view the comments powered by Disqus.
