Global human-made mass exceeds all living biomass

  title={Global human-made mass exceeds all living biomass},
  author={Emily Elhacham and Liad Ben-Uri and Jonathan Grozovski and Yinon M. Bar-On and Ron Milo},
Humanity has become a dominant force in shaping the face of Earth 1 – 9 . An emerging question is how the overall material output of human activities compares to the overall natural biomass. Here we quantify the human-made mass, referred to as ‘anthropogenic mass’, and compare it to the overall living biomass on Earth, which currently equals approximately 1.1 teratonnes 10 , 11 . We find that Earth is exactly at the crossover point; in the year 2020 (± 6), the anthropogenic mass, which has… Expand

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