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Nearly 40% of potential terrestrial net primary productivity is used directly, co-opted, or foregone because of human activities. The authors calculate the fraction of net primary production appropriated by humans in three ways: a low estimate of direct use, an intermediate estimate including lands devoted to human activities, and a high estimate further including productive capacity lost. Global net primary production is estimated to be 132.1 petagrams per year, and humans appropriate 40% of this through v

Author

Artu Choque

Language

EN