Pollution risks worsening global water scarcity – study

PARIS: Water scarcity could affect 3 billion more people than previously expected by mid-century, with increased pollution rendering river sources "unsafe" for humans and wildlife, researchers warned on Tuesday.

The UN's climate science panel has said that around half the world's population currently faces severe water scarcity for at least a month a year and warned that global warming impacts and rising demand are key risks to global supply.