Скачать или смотреть Scientist warns of major global crisis by 2030 - 19 March 09

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One of Britain's leading scientists is warning that the growth of the world's population will reach crisis point by the year 2030.

John Beddington, the UK government's chief scientific adviser, says food and water supplies will come under severe pressure as the Earth's population swells to 8.5 billion people.

He says the answer is in embracing new agricultural technology.

Harry Smith reports.

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