The method used 6 liters of water for each wash. The scientists studied the droplets and aerosols (the smallest particulates among droplets) when the toilet was flushed with the lid open.

If you've already tried to flush the clog down a second time and the toilet bowl is positively brimming, add the soap ...

Approximately 2.5 billion people worldwide and 4 million people in the United States live without a flushing toilet. In Alaska, about 22 percent of the population — just over 160,000 people — live ...