NPR

How More Carbon Dioxide In The Air Could Lead To More Human Disease

Nutrients in crops fall as carbon dioxide rises. People who don't get enough of the right nutrients are more likely to get sick. Researchers have now estimated the effects.
An increase in atmospheric carbon dioxide would lead to a decrease in the nutritional content of many foods, such as rice, seen here growing in Malaysia.

The rising level of carbon dioxide in the atmosphere means that crops are becoming less nutritious, and that change could lead to higher rates of malnutrition that predispose people to various diseases.

That conclusion comes from an analysis published Tuesday in the journal PLOS Medicine, which also examined how the risk could be alleviated. In the end, cutting emissions, and not public health initiatives, may be the best response, according to the paper's authors.

Research has already shown that crops like wheat and rice of essential nutrients when exposed to higher levels of carbon dioxide, COconcentrations in agricultural fields. While plants grew bigger, they also had lower concentrations of minerals like iron and zinc.

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