Millions of people live without safe drinking water. Is this simple design a life-saver, or a silly first-world solution? For as long as well-meaning nonprofits have been trying to help bring clean ...

Tear out a page from this book of life, and drink — literally. Third-world residents and survivalists alike may soon be able to filter dirty water through paper pages. Originating from a doctoral ...

Researchers have invented filter paper that can inhibit the growth of specific bacteria that usually contaminate drinking water. These nanoparticle-coated cellulose-foam-based filter papers could be ...