Over the last decade we have become increasingly alarmed at the amount of chemical waste and rubbish in water streams globally. The quality of natural water in rivers, lakes and reservoirs and below the ground surface depends on a number of interrelated factors. Unfortunately, factories use water from rivers to power or to cool down machinery, with dirty water containing chemicals returning back to the river in such high concentrations eventually...

LONDON (Thomson Reuters Foundation) - Nearly half the world’s schools lack clean drinking water, toilets and handwashing facilities, putting millions of children at risk of disease, experts warned on Monday.