The World Health Organization is expected to declare polio a global emergency after outbreaks in countries previously free of the disease.

A third of malaria drugs used around the world to stem the spread of the disease are counterfeit, data suggests.

A public toilet in Beijing's Zhongguancun area The benchmarks apply to toilets in public premises or on roadsides

A Peruvian minister has denied claims that explosions used in oil exploration are to blame for the deaths of hundreds of dolphins.

The biggest environmental summit for a decade must make meaningful progress on global food security and sustainable agriculture, say researchers.

The search for an underground storage site for high-level nuclear waste is likely to go ahead in Cumbria after a poll showed residents are in favour.

Scientists have identified thousands of sites in the Arctic where methane that has been stored for many millennia is bubbling into the atmosphere.

It's argued that deforestation has made climate change worse. The town of Cherrapunjee, in the north-eastern Indian state of Meghalaya, is reputed to be the wettest place in the world. But there are signs that its weather patterns may be being hit by global climate change.