4 hundred million people is more than the entire population of the United States and China just ended their water scarcity problem by building the largest solar powered desalination network ever constructed along its full coastline.
The system draws seawater in, runs it through desalination infrastructure powered entirely by coastal solar installations, and delivers clean drinking water to inland populations at a scale no water project in human history has previously attempted or achieved. The ocean that borders China's eastern edge has been converted into the raw material for the most ambitious clean water infrastructure ever built.
Water scarcity is consistently ranked among the most severe threats to human stability in the coming decades with demand projected to outstrip supply across major population centers well before the middle of this century. China did not wait for that crisis to arrive. It built a coastline length solution powered by sunlight that produces clean water continuously without depleting a single river, lake, or underground aquifer. Four hundred million people is not a statistic. It is the population of a continent and China just gave all of them access to water that the ocean will never run out of supplying.
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