How China Feeds 1.4 Billion People With Just 7% of World’ Arable Land

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China is home to 1.4 billion or about 22% of the world’s population. Yet the country has only about 7% of the world’s arable land and entire regions in the north suffer from worse water scarcity than that of the Middle East. China is no stranger to massive engineering feats – the South-to-North Water Diversion Project, for example, was first mooted as early as 1952 to channel water from the Yangtze River in southern China to the more arid and industralizied north.