Effects of rising CO2 on protein, iron, and zinc availability in global diets

In recent years, the global fight against chronic hunger and undernutrition has focused increasingly on ensuring access to the proper levels of nutrients and micronutrients. Driving this shift has been overwhelming scientific evidence showing caloric intake is not enough to prevent undernutrition and its maladies, and that certain nutrients are critical to human health and well-being. Hundreds of millions of people worldwide receive enough calories but suffer from a chronic deficiency in nutrients that negatively affects their cognitive and metabolic development.

Photo: Peter Lowe/CIMMYT