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News Release 14-152

Boosts in productivity of corn and other crops modify Northern Hemisphere carbon dioxide cycle

Croplands help drive greater seasonal change in annual cycle

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combines harvesting

Humans and our croplands are important newcomers to the atmospheric carbon dioxide cycle story.

Credit: Thinkstock

 

irrigation syste, on the field

Interactions between Northern Hemisphere agriculture and Earth's atmosphere may be far-reaching.

Credit: Thinkstock

 

wheat

Changes in Northern Hemisphere atmospheric carbon dioxide levels may be linked with agriculture.

Credit: Wikimedia Commons


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corn field at sunset

During the last 50 years, cropland area has been stable, but production has intensified.

Credit: James Jordan/Wikimedia Commons


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Corn plants in the field

Corn accounts for two-thirds of the crop contribution to changes in seasonal carbon dioxide.

Credit: Lars Plougmann/Wikimedia Commons


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tractor in the field

Almost 90 percent of the Northern Hemisphere's corn is produced in the U.S. and China.

Credit: Jess Johnson/Wikimedia Commons


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