The Food Challenge

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With soaring food prices, a growing population and a changing climate, how will we feed the world? In this episode of Earth Focus, we look at both low and high tech solutions - from treadle pumps and urban farming, to genetically modified animals and mega farms. In the developing world, simple solutions help farmers grow and sell more food thereby helping reduce hunger and poverty. In the industrialized world, high tech solutions are often controversial and raise ethical concerns.

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