A study has highlighted the risk posed by projected climate change on the world's ability to grow enough food. A US team of researchers found that forecasted shifts in climate by 2070 would occur too quickly for species of grass to adapt to the new conditions.

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A study has highlighted the risk posed by projected climate change on the world's ability to grow enough food. A US team of researchers found that forecasted shifts in climate by 2070 would occur too quickly for species of grass to adapt to the new conditions.