During the United Nations’ International Year of Chemistry (IYC 2011), students from around the world took part in water-testing experiments and created water-themed art.

Remember the fire-fighting mascot Smokey Bear? Meet Johnny Horizon, his little-remembered, pollution-fighting counterpart.

Nearly a century of asbestos manufacturing carried the borough of Ambler, Pennsylvania, from bust to boom and back to bust. In recent years Ambler has gotten back on its feet, but its industrial past remains very much present.

By monitoring sewage, scientists can track disease outbreaks in near real time. But will the technology leave long-term privacy risks in its wake?

Lessons from the Polio Pioneers in an era of misinformation.

Can scrutinizing the ailments of historical figures really teach us anything?