Providing clean water to their people is a challenge for developing countries struggling to avert health scares while keeping a lid on costs. Three classmates from Singapore are trying to lend a helping hand, using little more than a plastic bag and a ceramic membrane.
The absence of clean water is a big global problem. The World Health Organization (WHO) estimates that that 1 in 10 people around the world lack access to clean water.
In many disaster-stricken regions and rural areas, residents often have to resort to drinking contaminated water, resulting in the transmission of diseases such as cholera, diarrhea and typhoid.