By Caroline Scott-Thomas
11-Sep-2009 Link to full article below
Modern seed companies are reducing crop diversity – and this could have serious consequences for food supply as the climate heats up, researchers claimed at the World Seed Conference in Rome this week.
This is the second time in a week that researchers have raised fears about the impact of climate change on crops. According to a study published online in the Proceedings of the National Academy of Sciences last week, climate change could result in severe shortages of two of America’s most important grains – corn and soy. Although yields increase with temperature up to 29C for corn and 30C for soybeans, there is a sharp decline in yield above these thresholds, they said.
Now fresh concerns have been raised that food manufacturers could find it more difficult to source ingredients in the future, as researchers from the International Institute of Environment and Development (IIED) have suggested that large-scale seed companies could squeeze out traditional plant breeding.
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