Biotic enhancement of weathering and the habitability of Earth

@article{Schwartzman1989BioticEO,
  title={Biotic enhancement of weathering and the habitability of Earth},
  author={D. Schwartzman and T. Volk},
  journal={Nature},
  year={1989},
  volume={340},
  pages={457-460}
}
AN important question in the Earth sciences is the role of the biota in the chemical weathering of silicate rocks, which affects atmospheric CO2 and therefore climate1-10. No comprehensive study of biotic influences, however, has quantitatively examined the climatic consequences were weathering to take place under completely abiotic conditions. Here we calculate that if today's weathering is 10, 100 or 1,000 times the abiotic weathering rate, then an abiotic Earth would be, respectively, ∼15… Expand
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