What is a one-sentence summary of the following article?
Instead of reaching for the roll of paper towels, use a hand dryer to save trees and water.  To replace the paper towels that we discard on a daily basis, 51,000 trees have to be cut down every day. To produce one ton of paper towels, 17 trees are cut down and 20,000 gallons of water are required. Using hand dryers as opposed to paper towels cuts down significantly on waste.  On a global scale, our discarded paper towels result in an estimated 254 million tons of trash every year. In the United States we consume over 13 billion pounds of paper towels every year. While thoroughly washing your hands is the best way to prevent the spread of germs, drying your hands also decreases the spread of bacteria. According to the CDC, germs are more easily transferred to and from wet hands. If you wash your hands and do not dry them, you usually end up with water stains all over your clothes. Use a hand dryer to prevent this from happening. While hand dryers can help reduce your carbon footprint, they still have an environmental impact. They require electricity to run, and thereby play a role in carbon dioxide emissions.  Drying your hands with the typical 2,200 watt warm air-dryer three times a day for one year produces 26.61 pounds of carbon dioxide emissions.  To evaluate the carbon footprint of using hand dryers, also think about how your local electric company generates electricity. The more coal it uses, the more carbon the dryer produces. Researchers have concluded that paper towels are the more hygienic and sanitary choice. Here are some of the main reasons why hand dryers are less effective at decreasing the spread of germs:   Dryers in public places are rarely cleaned. People often stick their hands in the dryers or on the rim, leaving bacteria on the surface. The dryers can blow bacteria onto other surfaces and onto people using them. In a study published in the Journal of Hospital Infection, researchers determined that jet dryers left 4.5 times more bacteria in the vicinity than warm-air dryers, and 27 times more bacteria than paper towels. Other researchers, however, have questioned the methods employed in the study.

Summary:
Save trees and water. Reduce waste. Decrease the spread of germs caused by not drying your hands. Prevent water stains on your clothes. Evaluate the environmental impact of hand dryers. Assess the health risks.