Cape Town Isn't Only Big City With Water Crisis

Cape Town's water situation is dire, but although it may soon be the first big city in the world to run out of H2O, it's not the only one nearing such a precarious position. The BBC takes a look at other major urban areas thirsting for liquid sustenance, citing a spike in property development, illegal digging of wells, saltwater intrusion, and pollution issues among the causes for these cities' shortages. Here, the top five that need to keep an eye on their taps:

• Sao Paulo
• Bangalore, India
• Beijing
• Cairo
• Jakarta, Indonesia

See the BBC for other cities in danger of drying up, including one big US city. (What people in these cities shouldn't do: Drink "raw water.")