The San Francisco Treatment: Just Doo It
· San Francisco officials, looking for different sources of energy, are turning their attention to the power of the poop.
Dog poop, to be precise.
In the next few months, the California city will start a program at a popular dog park that will encourage people to drop their dog droppings into a methane digester -- a contraption in which bacteria eat at doggie doo for weeks until the poop becomes methane gas.
The gas could then be used to power gas stoves and heaters. It also could be used to generate electricity.
How much energy could be generated by Fido's feces? Well, city officials say that almost 4 percent of household trash is dog waste. That's about 6,500 tons a year.
San Francisco -- which was named after Saint Francis of Assisi, the patron saint of animals -- is home to about 120,000 dogs.