Study: CO2 buildup could affect food quality

As if our food quality hadn’t already declined enough because of the quantity over quality methods of modern farming.

Summit County Citizens Voice

Wheat field in Upper Austria A wheat field in Upper Austria ripens under a summer sun. bberwyn photo.

Protein levels in key grains could decline by 3 percent

Staff Report

FRISCO — Along with cutting yields of some key crops, increasing atmospheric carbon dioxide is also expected to affect the nutritional quality of food crops. Field tests by UC Davis scientists show that elevated levels of carbon dioxide make it harder for some plants to convert nitrogen into proteins.

“Food quality is declining under the rising levels of atmospheric carbon dioxide that we are experiencing,” said lead author Arnold Bloom, a professor in the Department of Plant Sciences at UC Davis. “Several explanations for this decline have been put forward, but this is the first study to demonstrate that elevated carbon dioxide inhibits the conversion of nitrate into protein in a field-grown crop,” Bloom said.

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