Besides being more sanitary than toilet tissue, bidets are also much less stressful on the environment than using paper.
>Justin Thomas, editor of the website metaefficient.com, considers bidets to be “a key green technology” because they eliminate the use of toilet paper. According to his analysis, Americans use 36.5 billion rolls of toilet paper every year, representing the pulping of some 15 million trees. Says Thomas: “This also involves 473,587,500,000 gallons of water to produce the paper and 253,000 tons of chlorine for bleaching.” He adds that manufacturing requires about 17.3 terawatts of electricity annually and that significant amounts of energy and materials are used in packaging and in transportation to retail outlets.
Bidets, use about 1/8th of a gallon of water, while the average toilet uses about four gallons per flush.
>Lloyd Alter of the website treehugger.com reports that making a single roll of toilet paper requires 37 gallons of water, 1.3 kilowatt/hours (KWh) of electricity and some 1.5 pounds of wood. Thomas points out that toilet paper is also a public nuisance in that it clogs pipes and adds a significant load onto city sewer systems and water treatment plants.
>“Basically, the huge industry of producing toilet paper could be eliminated through the use of bidets,” offers Thomas, who has been testing different toilet-seat mounted units for the past two years. He would like to someday pair a bidet with a composting sawdust toilet for the ultimate green bathroom experience.
Once reserved for Europeans, bidets are now popular all over the world—except in North America.
Bidet maker BioRelief reports that almost 80 percent of all infectious diseases are passed on by human contact and that only about half of us actually wash our hands after using the facilities—making hands-free bidets a safer alternative all around. “If you don’t have to use your hands at all then there is less chance of passing or coming in contact with a virus,” claims the company.[SOURCE](http://www.scientificamerican.com/article/earth-talks-bidets/)