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Food crops could be ravaged this century by an explosion in the numbers of insect pests caused by rising global temperatures, according to scientists who have carried out an exhaustive survey of plant damage when the earth last experienced major climate change.
Researchers found that the numbers of leaf-eating insects are likely to surge as a result of rising levels of CO2, at a time when crop production will have to be boosted to feed an extra three billion people living at the end of 21st century.
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