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LONDON, March 22 (Thomson Reuters Foundation) - One in four children — 600 million in total — may live in areas with severely limited water resources by 2040, putting them at risk of deadly diseases like cholera and diarrhoea, the U.N. children's agency UNICEF said on Wednesday.
Already some 500 million children live in areas with limited water supplies, and the demand for water today far exceeds available resources in 36 countries, UNICEF said.
Supplies are expected to shrink further due to droughts, rising temperatures, flooding, population growth and urbanisation, the U.N. agency said in a report.
If no action is taken to clean up and conserve water supplies, more children will be forced to drink potentially unsafe water as a result, UNICEF said.
"Around the world, millions of children lack access to safe water - endangering their lives, undermining their health, and jeopardising their futures," said UNICEF executive director Anthony Lake.
"This crisis will only grow unless we take collective action now,” he added in a statement.
Climate change is one of the reasons behind reduced water sources in the future, impacting "the quality and quantity of the water", Cecilia Scharp, a senior water advisor at UNICEF, told the Thomson Reuters Foundation.
Flooding, which is expected to increase due to rising sea levels and changing weather patterns, can pollute water supplies and spread unsafe water across wide areas.
Droughts are also expected to increase in frequency and severity.
Women and girls now spend 200 million hours a day collecting water, and this will rise if they are forced to travel further to reach water sources, making them vulnerable to attack in some countries, UNICEF said.
UNICEF’s projections are based on models assuming no action is taken to conserve water and tackle pollution, Scharp said.
But governments, industries, agricultural businesses and communities can help diminish the impact of climate change on children in countries pressed for water resources, the agency said.
Governments should plan for risks to water supplies from drought, rising temperatures, flooding, population growth and urbanisation, Scharp said.
Businesses should ensure they are conserving as much water as possible, and reusing waste water whenever they can, UNICEF said.
"You can use economic incentives so people don't overuse (water),” Scharp said of local governments.
“You can put restrictions on ... personal use of water in urban areas where a lot of water is used for lifestyle activities, more than (for) consumption."
Poorer children will be hurt the most by a depletion of water sources in the future. This "should come as no surprise", UNICEF said.
Reporting by J.D. Capelouto; editing by Alex Whiting.; Please credit the Thomson Reuters Foundation, the charitable arm of Thomson Reuters, that covers humanitarian news, climate change, resilience, women's rights, trafficking and property rights. Visit news.trust.org/climate