Impact of anthropogenic CO2 emissions on global human nutrition

  title={Impact of anthropogenic CO2 emissions on global human nutrition},
  author={Matthew R. Smith and Samuel S. Myers},
  journal={Nature Climate Change},
Atmospheric CO2 is on pace to surpass 550 ppm in the next 30–80 years. Many food crops grown under 550 ppm have protein, iron and zinc contents that are reduced by 3–17% compared with current conditions. We analysed the impact of elevated CO2 concentrations on the sufficiency of dietary intake of iron, zinc and protein for the populations of 151 countries using a model of per-capita food availability stratified by age and sex, assuming constant diets and excluding other climate impacts on food… 

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