Arsenic poisoning is a global phenomenon, affecting 137 people everyday across the world. It is a prevalent issue in developed countries like the US, as well as in developing countries. The former has the means to deal with the problem, while the poor in the latter often do not. Now, a new filtering system designed by Australian Scientists may have found a solution to this challenge. This system uses bacteria and algae to clean drinking water that could be arsenic-contaminated. Read more here.