Hi Matt,

Rockström and other twenty eight co-authors published: "Planetary Boundaries: Exploring the Safe Operating Space for Humanity". The paper published in Nature in 2009 has already 394 citations and is explained in the link below,
http://en.wikipedia.org/wiki/Planetary_boundaries

Juan

On 9/25/2013 11:01 AM, Matt Neidenberg wrote:
Furthermore, who (what human construct) decides what the limits of our ecosystem are? A 
team of elite scientists and policy makers whom all the politicians have full trust in to 
set the "limits" of their economy.

--
Juan P. Alvez, PhD
Pasture Program Technical Coordinator
Center for Sustainable Agriculture
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Burlington, VT 05401-5933
Phone: 802-656-6116
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[email protected] | www.uvm.edu/sustainableagriculture

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