A Measurable Planetary Boundary for the Biosphere

  title={A Measurable Planetary Boundary for the Biosphere},
  author={Steven W. Running},
  pages={1458 - 1459}
  • S. Running
  • Published 21 September 2012
  • Environmental Science, Geology
  • Science
Terrestrial net primary (plant) production provides a measurable boundary for human consumption of Earth's biological resources. Forty years ago, Meadows et al. published a landmark first analysis of global limits to human activity (1). Based on a primitive computer model of the Earth system, they concluded that by the early decades of the 21st century, tangible limits to key global resources would begin to emerge. A reanalysis of the original results in 2008 found that the original global… 
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