Small-scale "eco-farming" could double food production in many of the world's poorest regions and also help fight climate change, according to a United Nations report unveiled Tuesday. The spectre of world hunger looms ever larger as the global population continues to balloon, especially in the least developed nations. Today more than a billion of the planet's nearly seven billion people live at the edge of subsistence on less than a dollar per day. Food prices have flared in recent years due to climate-related natural disasters, with the cost of several staple foods reaching unprecedented levels last month, according to the UN's food price index. By mid-century, when the global population is expected to surpass nine billion, food shortages will become even more critical as will the need for additional output.
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