Potsdam Institute: 40% Global Shortfall In Fresh Water Availability By The End Of This Decade
The world is facing an imminent water crisis, with demand expected to outstrip the supply of fresh water by 40% by the end of this decade, experts have said on the eve of a crucial UN water summit. Governments must urgently stop subsidising the extraction and overuse of water through misdirected agricultural subsidies, and industries from mining to manufacturing must be made to overhaul their wasteful practices, according to a landmark report on the economics of water.
Nations must start to manage water as a global common good, because most countries are highly dependent on their neighbours for water supplies, and overuse, pollution and the climate crisis threaten water supplies globally, the report’s authors say. Johan Rockstrom, the director of the Potsdam Institute for Climate Impact Research and co-chair of the Global Commission on the Economics of Water, and a lead author of the report, told the Guardian the world’s neglect of water resources was leading to disaster. “The scientific evidence is that we have a water crisis. We are misusing water, polluting water, and changing the whole global hydrological cycle, through what we are doing to the climate. It’s a triple crisis.”
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Water is fundamental to the climate crisis and the global food crisis. “There will be no agricultural revolution unless we fix water,” said Rockstrom. “Behind all these challenges we are facing, there’s always water, and we never talk about water.”
Many of the ways in which water is used are inefficient and in need of change, with Rockstrom pointing to developed countries’ sewage systems. “It’s quite remarkable that we use safe, fresh water to carry excreta, urine, nitrogen, phosphorus – and then need to have inefficient wastewater treatment plants that leak 30% of all the nutrients into downstream aquatic ecosystems and destroy them and cause dead zones. We’re really cheating ourselves in terms of this linear, waterborne modern system of dealing with waste. There are massive innovations required.”
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https://www.theguardian.com/environment/2023/mar/17/global-fresh-water-demand-outstrip-supply-by-2030
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