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First plants cooled the Ordovician

The Late Ordovician period, ending 444 million years ago, was marked by the onset of glaciations. The expansion of non-vascular land plants accelerated chemical weathering and may have drawn down enough atmospheric carbon dioxide to trigger the growth of ice sheets.

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Figure 1: Global changes during the Ordovician period.
Figure 2: Moss enhances the weathering of Al, Ca, Fe, K and Mg from silicates.
Figure 3: Model results.


  1. Trotter, J. A., Williams, I. S., Barnes, C. R., Lecuyer, C. & Nicoll, R. S. Science 321, 550–554 (2008).

    Article  Google Scholar 

  2. Berner, R. A. Science 276, 544–546 (1997).

    Article  Google Scholar 

  3. Berner, R. A. Geochim. Cosmochim. Acta 70, 5653–5664 (2006).

    Article  Google Scholar 

  4. Bergman, N. M., Lenton, T. M. & Watson, A. J. Am. J. Sci. 304, 397–437 (2004).

    Article  Google Scholar 

  5. Tobin, K. J. & Bergstrom, S. M. Palaeogeog. Palaeoclim. Palaeoecol. 181, 399–417 (2002).

    Article  Google Scholar 

  6. Tobin, K. J., Bergström, S. M. & De La Garza, P. Palaeogeog. Palaeoclim. Palaeoecol. 226, 187–204 (2005).

    Article  Google Scholar 

  7. Yapp, C. J. & Poths, H. Earth Planet. Sci. Lett. 137, 71–82 (1996).

    Article  Google Scholar 

  8. Gibbs, M. T., Barron, E. J. & Kump, L. R. Geology 25, 447–450 (1997).

    Article  Google Scholar 

  9. Herrmann, A. D., Patzkowsky, M. E. & Pollard, D. Geology 31, 485–488 (2003).

    Article  Google Scholar 

  10. Kump, L. R. et al. Palaeogeog. Palaeoclim. Palaeoecol. 152, 173–187 (1999).

    Article  Google Scholar 

  11. Young, S. A., Saltzman, M. R., Foland, K. A., Linder, J. S. & Kump, L. R. Geology 37, 951–954 (2009).

    Article  Google Scholar 

  12. Nardin, E. et al. Geol. Soc. Am. Bull. 123, 1181–1192 (2011).

    Article  Google Scholar 

  13. Saltzman, M. R. & Young, S. A. Geology 33, 109–112 (2005).

    Article  Google Scholar 

  14. Pope, M. C. & Steffen, J. B. Geology 31, 63–66 (2003).

    Article  Google Scholar 

  15. Berry, W. B. N. Geol. Soc. Am. S. 466, 141–147 (2010).

    Google Scholar 

  16. Bateman, R. M. et al. Annu. Rev. Ecol. Syst. 29, 263–292 (1998).

    Article  Google Scholar 

  17. Moulton, K. & Berner, R. A. Geology 26, 895–898 (1998).

    Article  Google Scholar 

  18. Wellman, C. H. & Gray, J. Phil. Trans. R. Soc. Lond. B 355, 717–732 (2000).

    Article  Google Scholar 

  19. Rubinstein, C. V., Gerrienne, P., de la Puente, G. S., Astini, R. A. & Steemans, P. New Phytol. 188, 365–369 (2010).

    Article  Google Scholar 

  20. Qiu, Y.-L. et al. Proc. Natl Acad. Sci.USA 103, 15511–15516 (2006).

    Article  Google Scholar 

  21. Chadwick, O. A., Derry, L. A., Vitousek, P. M., Huebert, B. J. & Hedin, L. O. Nature 397, 491–497 (1999).

    Article  Google Scholar 

  22. Algeo, T. J. & Scheckler, S. E. Phil. Trans. R. Soc. Lond. B 353, 113–130 (1998).

    Article  Google Scholar 

  23. Steemans, P. et al. Science 324, 353 (2009).

    Article  Google Scholar 

  24. Poulton, S. W. & Raiswell, R. Am. J. Sci. 302, 774–805 (2002).

    Article  Google Scholar 

  25. Sheehan, P. M. Annu. Rev. Earth Planet. Sci. 29, 331–364 (2003).

    Article  Google Scholar 

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We thank the Earth and Life Systems Alliance (ELSA) for funding this research. T.M.L. is also supported by NERC (NE/I005978/1). L.D. and N.P. are also supported by an EVO500 grant from the ER AdG program. P. Bota provided assistance with GC-MS.

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Authors and Affiliations



T.M.L. and L.D. designed the study. M.C. conducted the microcosm experiments with input from N.P. and L.D. M.C., M.J., L.D. and T.M.L. conducted geochemical analyses. N.P. and L.D. identified acids in moss exudates. T.M.L. did the modelling and sensitivity analyses. T.M.L. and L.D. wrote the paper with input from M.J., M.C. and N.P.

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Correspondence to Timothy M. Lenton or Liam Dolan.

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The authors declare no competing financial interests.

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Lenton, T., Crouch, M., Johnson, M. et al. First plants cooled the Ordovician. Nature Geosci 5, 86–89 (2012).

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