Global Nutrition Threatened by Rising CO2 Levels.
If rising carbon dioxide (CO2) concentrations reach expected levels by 2050, researchers warn that global crops may have reduced nutritional levels of iron and zinc. If these nutrients are reduced, it may represent a significant health threat to the entire world population. Lead author Samuel Myers explains, “Humanity is conducting a global experiment by rapidly altering the environmental conditions on the only habitable planet we know. As this experiment unfolds, there will undoubtedly be many surprises. Finding out that rising CO2 threatens human nutrition is one such surprise.”
Nature, May 2014