Citizens battle to save China's sickly 'mother river'

Water has been a source of death as well as a source of life for a generation in Shenqiu, a region fed by a tributary of China's heavily polluted Yangtze river and pockmarked with notorious "cancer villages".

Toxic Sydney bushfire haze a 'public health emergency'

Australia's biggest city is facing a "public health emergency" over the bushfire smoke that has choked Sydney for weeks, leading doctors warned Monday after hospitals reported a dramatic spike in casualty department visits.

Sustainable sand pulls pollutants from stormwater

UC Berkeley engineers have developed a mineral-coated sand that can soak up toxic metals like lead and cadmium from water. Along with its ability to destroy organic pollutants like bisphenol A, this material could help cities ...

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