Climate change is reducing the vitamin and mineral content of crops, worsening "hidden hunger," a new global study warns. Israeli researcher Prof. Asaph Aharoni says up to two-thir

Climate change is reducing the vitamin and mineral content of crops, worsening "hidden hunger," a new global study warns. Israeli researcher Prof. Asaph Aharoni says up to two-thirds of the world's population already lacks essential micronutrients.