by Vikas ShuklaNovember 21, 2014, 8:55 am

November 21, 2014 2:02 PM

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It seems counter-intuitive, but rising crop yields actually add more carbon dioxide to the atmosphere. Over the past few decades, food production has increased sharply to meet demands for rising population. According to a new study conducted by scientists at Boston University, increasing crop yields account for as much as 25% of the seasonal increase in greenhouse gases.

Plants absorb CO2 in spring and summer convert solar energy into food, leading to a drastic drop in atmospheric CO2. But that absorbed carbon dioxide is released back to the atmosphere in fall and winter, said Chris Kucharik, co-author of the study and a professor at the University of Wisconsin-Madi...

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