@article {Rockstrom2009Safe,
	title = {A safe operating space for humanity},
	journal = {Nature},
	volume = {461},
	number = {7263},
	year = {2009},
	month = {September},
	pages = {472{\textendash}475},
	publisher = {Nature Publishing Group},
	abstract = {Identifying and quantifying planetary boundaries that must not be transgressed could help prevent human activities from causing unacceptable environmental change, argue Johan Rockstr{\"o}m and colleagues.},
	keywords = {biodiversity, conservation, course, ecology, tippingpoints},
	issn = {0028-0836},
	doi = {10.1038/461472a},
	url = {http://dx.doi.org/10.1038/461472a},
	author = {Rockstrom, Johan and Steffen, Will and Noone, Kevin and Persson, Asa and Chapin, F. Stuart and Lambin, Eric F. and Lenton, Timothy M. and Scheffer, Marten and Folke, Carl and Schellnhuber, Hans J. and Nykvist, Bjorn and de Wit, Cynthia A. and Hughes, Terry and van der Leeuw, Sander and Rodhe, Henning and Sorlin, Sverker and Snyder, Peter K. and Costanza, Robert and Svedin, Uno and Falkenmark, Malin and Karlberg, Louise and Corell, Robert W. and Fabry, Victoria J. and Hansen, James and Walker, Brian and Liverman, Diana and Richardson, Katherine and Crutzen, Paul and Foley, Jonathan A.}
}
