Elevated CO2 and the hidden hunger crisis: mechanisms, magnitudes, and mitigation of micronutrient dilution in staple crops
Hidden hunger results from inadequate intake of iron (Fe), zinc (Zn), and other key micronutrients. Over 2 billion people worldwide are affected, especially those who rely on staple cereals for daily food. Elevated CO2 often boosts photosynthesis and yield in C3 crops. However, it also reduces grain mineral levels via...