By Astrid Zweynert
LONDON, March 22 (Thomson Reuters Foundation) - An estimated three out of four jobs globally are dependent on water, meaning that shortages and lack of access are likely to limit economic growth in the coming decades, the United Nations said on Tuesday.
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A woman collects drinking water from a supply line on World Water Day in Dimapur, Nagaland on Tuesday, March 22, 2016. Photo by Caisii Mao[/caption]
About 1.5 billion people - half the world's workers - are employed in industries heavily dependent on water, most of them in farming, fisheries and forestry, the U.N. World Water Development Report 2016 said.
"There is a direct effect on jobs worldwide if there are disruptions in water supply through natural causes, such as droughts, or if water doesn't get to communities because of infrastructure problems," said Richard Connor, the report's editor-in-chief.
Research has shown investment in small-scale projects providing access to safe water and basic sanitation in Africa could offer a return equivalent to almost 5 percent of the continent's economic output, the report said.
In the United States, every $1 million invested in the country's water supply and treatment infrastructure generates between 10 and 20 additional jobs, according to the report.
This in turn will lead to a 70 percent increase in demand for food, putting more pressure on water through farming, which is already the biggest consumer of water.
As climate change contributes to rising sea levels and extreme weather, at least one in four people will live in a country with chronic or recurring shortages of fresh water by 2050, the United Nations estimates, making it more important to focus on expanding rainwater harvesting and recycling wastewater.
Connor said funding for projects was still often based on "investment in pumps and pipes" rather than a more holistic view, taking into account water's key role in building a sustainable economy as part of the new global development goals.
More investment in renewable energy such as solar and wind, which use very little water, is also crucial in reducing demand for water, Connor said.