Previous Article Next Article Table of Contents Science, Vol.338, No.6113, 1419-1420, 2012 DOI10.1126/science.338.6113.1419-c Export Citation Pushing the Planetary Boundaries Erb KH, Haberl H, Defries R, Ellis EC, Krausmann F, Verburg PH Please enable JavaScript to view the comments powered by Disqus.
