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Food security

Fertilizing hidden hunger

Atmospheric CO2 fertilization may go some way to compensating the negative impact of climatic changes on crop yields, but it comes at the expense of a deterioration of the current nutritional value of food.

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Figure 1: Currently, the C3-crops wheat, rice and soy provide almost 40% of the world's food calorie supply (left) as well as significant shares of iron, zinc and proteins (current levels represented as thirds of the plate area).


  1. Rosenzweig, C. et al. Proc. Natl Acad. Sci. USA 111, 3268–3273 (2014).

    CAS  Article  Google Scholar 

  2. Leakey, A. D. B. et al. J. Exp. Bot. 60, 2859–2876 (2009).

    CAS  Article  Google Scholar 

  3. Myers, S. S. et al. Nature 510, 139–142 (2014).

    CAS  Article  Google Scholar 

  4. Ainsworth, E. A., Leakey, A. D. B., Ort, D. R. & Long, S. P. New Phytologist 179, 5–9 (2008).

    CAS  Article  Google Scholar 

  5. Ribeiro, D. M., Araújo, W. L., Fernie, A. R., Schippers, J. H. M. & Mueller-Roeber, B. Plant Physiol. 160, 1781–1794 (2012).

    CAS  Article  Google Scholar 

  6. Dermody, O., O'Neill, B. F., Zangerl, A. R., Berenbaum, M. R. & DeLucia, E. H. Arthropod-Plant Interact. 2, 125–135 (2008).

    Article  Google Scholar 

  7. Warszawski, L. et al. Proc. Natl Acad. Sci. USA 111, 3228–3232 (2014).

    CAS  Article  Google Scholar 

  8. Nelson, G. C. et al. Proc. Natl Acad. Sci. USA 111, 3274–3279 (2014).

    CAS  Article  Google Scholar 

  9. Muthayya, S. et al. PLoS One 8, e67860 (2013).

    CAS  Article  Google Scholar 

  10. Welch, R. M. & Graham, R. D. J. Exp. Bot. 55, 353–364 (2004).

    CAS  Article  Google Scholar 

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Correspondence to Christoph Müller.

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Müller, C., Elliott, J. & Levermann, A. Fertilizing hidden hunger. Nature Clim Change 4, 540–541 (2014).

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