SciDev.Net

Persuading Cambodian river-dwellers to use a newly designed floating toilet instead of the river could cut soaring diarrhoea rates.

Controlling the amount of pollution that goes into China's Taihu Lake is the key to managing the algal blooms, writes Lucie Guo.

The slow response of South Asia to the crisis triggered by arsenic-laced water has cost thousands of lives, reports Yudhijit Bhattacherjee.

Chandra Dissanayake describes how a novel branch of geology could have important consequences for human health around the world.

Rong Jiaojiao reports on efforts to eradicate arsenic poisoning in a Chinese province where the toxin is present in coal used for heating and cooking.

Mark Clayton reports on technologies being developed to solve the problem of arsenic-contaminated drinking water.