As domestic water use has fallen, rates of wastewater reuse have risen; the United States now reuses between 10 percent and 15 percent of its wastewater. Disclaimer: AAAS and EurekAlert!

Researchers at Chalmers University of Technology, Sweden, have developed a new biobased material, a form of powder based on cellulose nanocrystals to purify water from pollutants, including ...