05 May '11, 6pm

Food harvests dragged lower by global warming

Food harvests dragged lower by global warming

There have already been plenty of indicators that global warming may be acting as a drag on world food production - lowering yields and pushing up food prices. Now a Stanford University research team has modeled in detail how the planetary warming of the last 3 decades has hit the world's 4 main food crops. The results, published today in Science Express , show that an area of corn (maize) equal to Mexico's annual output has been lost - and that France's wheat harvest would be entirely swallowed by the lowered wheat yields. And these reduced harvests can be pinned onto the effects of climate change. Harvest that are lower than what they could-have-been have helped to push an extra $50 billion onto the world's food bill, despite some benefit for crops from higher CO2 levels. But the numbers coming from the research do vary widely with crop and region. Whilst wheat and maize...

Full article: http://www.earthtimes.org/climate/food-harvests-dragged-g...

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