Soybean Yields to Drop on Climate, Ozone, U.S. Researcher Says - BusinessWeek

July 8 (Bloomberg) -- Climate change and pollution may cut yields for soybeans and other crops by 2050 unless plants are adapted, the University of Illinois said, citing research.

Tests showed crops grown in open fields benefitted less than expected from higher levels of carbon dioxide in the air, the university said in a report published yesterday. The yield increase was only half of that assumed by the United Nations’ climate-change panel to predict world food supply in 2050, according to the report.

[If the projected trend is downward, why is the actual trend upward?]