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Web Date: August 18, 2011

Crops Collect More Cadmium As Carbon Dioxide Builds

Climate Change: Under elevated CO2 levels, rice and wheat increasingly pick up the toxic metal from contaminated soils
Department: Science & Technology
News Channels: Environmental SCENE
Keywords: metals, cadmium, climate change, carbon dioxide, agriculture, rice, wheat

As human activity sends ever more carbon dioxide into the air, plants may grow faster and pull more nutrients from the soil. Now a study in food crops finds that as levels of CO2 increase, rice and wheat also take up more of the toxic metal cadmium (Environ. Sci. Technol., DOI: 10.1021/es2001584).

In a 29-month study, researchers led by Hongyan Guo, from Nanjing University, and Jianguo Zhu, of the Chinese Academy . . .

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