National Geographic: Crops grown in the high-CO2 atmosphere of the future could be significantly less nutritious, a new study published today in Nature suggests. Based on hundreds of experiments in the field, the work reveals a new challenge as society reckons with both rising carbon emissions and malnutrition in the future.
Scientists generally predict that crop yields could fall in a warmer world-though higher atmospheric CO2 by itself should raise yields, as plants find it easier to extract CO2 from the air to...