The Wei River in west-central China is not just the largest tributary of the Yellow River, but it has also been a critical water source for communities for thousands of years. To manage this important resource, water authorities in China just announced that they plan to invest 6 billion yuan - more than US$950 million - this year to fight floods and pollution in the Wei.
This investment in water management comes after flooding on the Wei killed dozens of people and forced tens of thousands from their homes in the fall of 2011. On top of these terrible human costs come severe economic impacts. According to some estimates, the 2011 flooding cost China more than 6 billion U.S. dollars.