Not to sound like Henny-Penny here but drought has more concerns for us than just a dirty car.
Did you know that ethanol production uses between 3 and 5 gallons of water per every gallon of ethanol? This water is typically coming from lakes, rivers and groundwater aquifers. This summers drought has caused a drop in water levels from all three sources. The aquifers around here dropped around 25%. Wells are running dry, and nearly all our local communities are restricting the use of water. Except the local car washes and gold courses.
With much of the corn crop across the US in ruins this summer, where do you suppose we will get our federally mandated ethanol from? Bet we import it from some country that doesn't like us much. Maybe we could just have gas rationing again.
This from the University of Illinois:
Water is an important resource. It is a consideration and part of the permitting process when ethanol plants are built. A typical ethanol plant capable of producing 40 million gallons of ethanol per year, could use up to 330,000 gallons of water per day or120 million gallons of water per year. This is equivalent to water used by a town of 5,000 people or a standard-sized golf course. The average home uses 107,000 gallons of water per year. An average person uses 50 gallons of water each day.
Soure:
Water Use for Ethanol Production - Ethanol - University of Illinois Extension
Another large water consumer comes from our power plants. Water is used mainly for cooling and steam production to run the turbines.
Large fossil fuel and nuclear plants require incredible quantities of water for cooling and ongoing maintenance. The Salem Nuclear Generating Station alone takes 3 billion gallons a day from the Delaware Bay. Studies of the environmental consequences of this phenomenal water demand indicates that Salem is responsible for an annual 11 percent reduction in weakfish and 31 percent reduction in bay anchovy. At the Indian Point 2 and 3 reactors on the Hudson River, the number of fish impinged totaled over 1.5 million fish in 1987. The 90 power plants using once-through-cooling on the Great Lakes kill in excess of 40 million fish per year due to impingement (Pace University, Environmental Costs of Electricity, p. 287).
As we run our lakes, rivers and aquifers dry, be prepared for shortages of fuel, power and food. Water likely will soon become a major problem for many of us. For example, cities like Las Vegas draw their water from Lake Mead. Lake Mead is predicted to run dry by 2021.
Source:
For Want of Water - Topics - Las Vegas Sun
This is not a local problem.
US Drought Monitor
State of the Climate | Drought | May 2012
Conserve water where you can. Am I concerned? You bet, and I hope you are as well.