Rising carbon dioxide levels will help, hurt crops

Elevated atmospheric carbon dioxide may increase water-use efficiency in crops and considerably mitigate yield losses due to climate change.

Elevated carbon dioxide concentrations in the atmosphere may increase water-use efficiency in crops and considerably mitigate yield losses due to climate change, according to a new study from the National Aeronautics & Space Administration (NASA).

The results, published in the journal Nature Climate Change on April 18, show some compensation for the adverse effects of temperature extremes and water scarcity caused by increasing emissions of carbon dioxide and other gre

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