India, China to face water crisis by 2050
Indian and Chinese cities will be among the hardest hit by future water shortages, as climate change worsens the effects of urbanization.
A report by US-based the Nature Conservancy predicts more than one billion people living in the world's biggest cities will face serious water shortages by 2050.
The environmental group forecasts that within four decades around 993 million city dwellers will live with less than 100 litres of water each day.
The study's lead author, Robert McDonald, told Radio Australia's Connect Asia program rapidly growing cities in Southeast Asia will need new infrastructure.
He says other potential solutions include water efficiency and better maintainance of pipes.
"Right now in many developing countries cities more than half the water is lost before it gets to citizens," he said.