“Across a diverse set of environments in a number of countries, we see this decrease in quality,” said Andrew Leakey of U-Illinois, an author of the study, in a Science Daily item. Nutrient levels in corn and sorghum were relatively stable at higher carbon dioxide levels. Plant breeding could address part of the loss in nutrients, said the abstract of the study.
The study, “Increasing Carbon Dioxide Threatens Human Nutrition,” appears in the journal Nature and is available here.