Increasing CO2 threatens human nutrition

Myers, Samuel S. and Zanobetti, Antonella and Kloog, Itai and Huybers, Peter and Leakey, Andrew D. B. and Bloom, Arnold and Carlisle, Eli and Dietterich, Lee H. and Fitzgerald, Glenn and Hasegawa, Toshihiro and Holbrook, N. Michele and Nelson, Randall L. and Ottman, Michael J. and Raboy, Victor and Sakai, Hidemitsu and Sartor, Karla A. and Schwartz, Joel and Seneweera, Saman and Tausz, Michael and Usui, Yasuhiro (2014) Increasing CO2 threatens human nutrition. Nature, 510 (7503). pp. 139-142. ISSN 0028-0836

Abstract

Dietary deficiencies of zinc and iron are a substantial global public health problem. An estimated two billion people suffer these deficiencies, causing a loss of 63 million life-years annually. Most of these people depend on C3 grains and legumes as their primary dietary source of zinc and iron. Here we report that C3 grains and legumes have lower concentrations of zinc and iron when grown under field conditions at the elevated atmospheric CO2 concentration predicted for the middle of this century. C3 crops other than legumes also have lower concentrations of protein, whereas C4 crops seem to be less affected. Differences between cultivars of a single crop suggest that breeding for decreased sensitivity to atmospheric CO2 concentration could partly address these new challenges to global health.


Statistics for USQ ePrint 25179
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2014 Macmillan Publishers Limited. Published online 7 May 2014. ArticleFirst version embargoed until 30 Oct 2014 in accordance with the copyright policy of the publisher. Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 30 Jun 2014 23:19
Last Modified: 04 Jan 2017 00:34
Uncontrolled Keywords: legumes; developing countries; nutritional deficiencies; atmospheric carbon dioxide; wheat
Fields of Research : 06 Biological Sciences > 0607 Plant Biology > 060705 Plant Physiology
06 Biological Sciences > 0699 Other Biological Sciences > 069902 Global Change Biology
05 Environmental Sciences > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change
Socio-Economic Objective: D Environment > 96 Environment > 9603 Climate and Climate Change > 960301 Climate Change Adaptation Measures
B Economic Development > 82 Plant Production and Plant Primary Products > 8205 Winter Grains and Oilseeds > 820507 Wheat
Identification Number or DOI: 10.1038/nature13179
URI: http://eprints.usq.edu.au/id/eprint/25179

Actions (login required)

View Item Archive Repository Staff Only