Farming must fully embrace genetically modified (GM) crops to meet the dual challenges of population growth and global warming, according to US Secretary of State Hillary Clinton's chief scientist, Nina Fedoroff.
Ms Fedoroff's comments follow India's decision to delay cultivating its first genetically modified vegetable crop over safety concerns.
Sir David King, director of the Smith School of Enterprise and the Environment and former government chief scientific adviser, examines the barriers to broadening the use of GM crops.
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