When people think of water, most think of drinking water. However, we also need water to grow crops, generate electricity, manufacture clothes, mine coal, and so on. In short, water is a major driving force for economic development. Currently, 97% of China's electricity production requires water daily; therefore, without water, there is no electricity. Between 2010 and 2030, China plans to add 1.2 terawatts (1 terawatt = 1 billion kilowatts) of hydropower, which is higher than the current combined installed capacity of the United States, the United Kingdom, and Australia. Coal plays a dominant role in China's energy structure. To reduce carbon emissions, China plans to reduce the proportion of coal in its energy structure from 70% to 55%, but this will increase China's coal-fired power generation by approximately 450 gigawatts (1 gigawatt = 1 million kilowatts), more than double India's current power generation. Coal has always received significant attention in air pollution discussions, but few people know about its destructive impact on water resources. Coal mining consumes large amounts of water and also pollutes water resources. 95% of China's coal mining requires significant amounts of groundwater. Studies show that mining one ton of coal in Shanxi Province depletes 1.07 cubic meters of groundwater. 70% of China's coal comes from Inner Mongolia, Shanxi, Shaanxi, and Hebei, potentially exacerbating groundwater pollution in the North China Plain. Worse still, 53% of China's coal reserves are located in water-scarce areas, and 30% in water-stressed regions. Mining and cleaning one ton of coal requires 24 bathtubs of water. In 2011, the largest coal-producing provinces in China produced...