South Florida is suffering a water shortage, but the shortage only exists because politicians are unwilling to allow market-based pricing. There is no shortage in the markets for air conditioners, automobiles, and haircuts, but that is because prices are allowed to rise and fall to reflect market conditions.
An article posted at TCSDaily.com offers a first-hand account of living with government-imposed price restrictions and draws an appropriate analogy to the price controls that caused gasoline shortages in the 1970s:
So here we are, in the spring of 2007, with rain below average, with a low lake level, little else in the way of reservoirs, and a water shortage. What is the response? Well, a rational response might be to price a scarce commodity such that people will use it only as they need it, and not frivolously. ...Instead, we get the response of the local commissars. So, not allowing the market to work, and not allowing prices to provide signals to the participants, they have decided to run our lives for us.
...I live at an odd numbered address. That means that if I want to water my lawn, I can only do it on Monday, Wednesday and Saturday mornings, from four to eight AM. I can water my plants with a hose on the same days, but only between five and seven PM. My neighbors across the street, and behind my house on the next block, get Sunday, Tuesday and Thursday.
...Over thirty years ago, in the first OPEC oil embargo, the government, rather than allowing prices to rise to account for the reduced supply, told people when they could purchase gas based on the parity of their license plate — even one day, odd the next. My recollection was that this did nothing to alleviate the shortage — the lines remained. The problem was only solved when Nixon-era price controls on oil were lifted, the market was allowed to work, and oil prices eventually (and it didn't take all that long) fell to historical lows.
...[H]ere's a radical concept. How about pricing the commodity to the market? Maybe, if people had to pay more for water to water their lawn, they'd use less of it? Yes, I know that it's hard to believe, but there really are some people out there who buy less of something if the price is higher.