Which city is most polluted? No one knows

On any given day, a news story might list a city in India as "most polluted." In another story, a city in China may have held the distinction. Then again, maybe Iran hosts the most polluted city in the world, as a recent ...

New system to detect mercury in water systems

A new ultra-sensitive, low-cost and portable system for detecting mercury in environmental water has been developed by University of Adelaide researchers.

Haze smoke affects butterfly caterpillars

NUS biologists have discovered that haze affects the survival and development of butterflies, which could have an adverse impact on our environment.

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