Food Becoming More Calorific But Less Nutritious Due To Rising Carbon Dioxide

More carbon dioxide in the environment is making food more calorific but less nutritious — and also potentially more toxic, a study has found. From a report: Sterre ter Haar, a lecturer at Leiden University in the Netherlands, and other researchers at the institution created a method to compare multiple studies on plants’ responses to increased CO2 levels. The results, she said, were a shock: although crop yields increase, they become less nutrient-dense. While zinc levels…