The Economist recently published a special report on water, which summarizes the difficulty of ensuring adequate clean water supplies for a growing global population. (It also touches on the related challenge of sanitation, which affects water quality.) Agriculture accounts for nearly 70% of the world's water use, although that number varies by region. In the US, 41% of water goes to agriculture; in India, the number is close to 90%.
India also has the distinction of being the country that draws the most groundwater, the Economist reports. With most areas subsidizing electricity, it's…
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