Solving The Global Water Crisis
By Daniel Simpson
“Water is the earth’s eye, looking into which
the beholder measures the depth of his own nature.”
– Henry David Thoreau
“When the well runs dry, we know the worth of water.”
– Benjamin Franklin
LONDON, 13 February 2008 - Of all the clichés du jour, few resonate quite like the one about water. According to the effusive chief executive of Dow Chemical, and countless others before him and since, it’s “the oil of the 21st century.” Only it isn’t, except in terms of the scramble for access.

Our dependence on water is involuntary, it can’t be substituted or offset, and there won’t be a rush before the droughts. This isn’t to suggest that no one gets rich, but our fixation on getting richer is part of the problem, perhaps even more so than demographics, diet and climate change. The poor will bear the brunt of future turmoil, but hardship is likely to hit most people, whether in the stomach or the pocket. As with energy, the price of food keeps rising, and in some places staples are already scarce. That’s partly down to water shortages, and technology can’t just conjure up unlimited cheap supplies. We have to use less, in the farming that guzzles most of it, in the industries that ship its hidden costs around the world, and in our homes and lifestyle choices. Without radical changes over the next couple of decades, it won’t just be Africans brandishing machetes over a water pump.
And yet, with better stewardship, there’s probably enough to go around. Unfiltered by human interference, the hydrological cycle yields the ultimate renewable resource. Even today, as sprawling cities and irrigation pipes suck river beds and aquifers dry, a combination of cutbacks, recycling and more integrated planning could still stave off the Biblical devastation envisaged by the United Nations. Barely three percent of the earth’s water is fit for human consumption (and most of that’s ice), perhaps parching or poisoning up to three billion people by 2025. But if the richest countries in particular consume less, and invest in membranes to make sewage thirst-quenching, they could reuse more of what they have, while promoting wetland conservation. Captured rainfall could replenish groundwater as part of plans to keep rivers hydrated. And if, as seems inevitable (but costly), we also strip salt from the sea, people might even stop misquoting the Ancient Mariner, and instead find plenty more drops to drink.
“Water has been taken for granted,” laments Ban Ki-Moon, the UN Secretary General. While some countries toy with austerity, others build desalinated oases, complete with golf courses and a hardcore fossil fuel habit. “The notion of water sustainability in a broad sense has not been seriously examined,” Ban told a roomful of executives and policymakers at last month’s World Economic Forum in Davos. “No one really owns the problem. Therefore, no one really owns the solution.” That’s led to comparisons with global warming, many of which are spurious, given the geographical variations in water scarcity compared to the atmospheric commons. There are nonetheless common policy responses, particularly when it comes to pricing in environmental cost. For the past couple of decades, international organisations have promoted local action, tailored to individual river basins. This is now being supplemented by a focus on quantifying and curbing worldwide wastage, perhaps using tradable footprint permits to encourage more holistic thinking about water embedded in supply chains.
The most logical sequence of policies is to start by slashing demand, most simply by jacking up prices. But this raises the question of water rights, a term with complex implications when referring to exploitation licenses, especially in the United States, where there’s booming speculative trade. More broadly, the right of humans to a fundamental necessity is only flimsily established, and even more weakly enforced. That will have to change, even if there’s little hope of delivering on UN promises to halve the number of people lacking access to safe drinking water by 2015. Tiered tariffs are an obvious compromise, and more nations are likely to emulate South Africa’s provision of a free (or nominal fee) subsistence minimum, defined by the World Health Organisation as 20 litres per person per day. If that sounds substantial, try filling a bath with it, then consider that we “eat” around 5,000 litres daily, depending on how much goes into producing our favourite foods – or their feed. More than half that volume is needed to make a simple cotton T-shirt, and even greater quantities to wring a single litre of ethanol from maize. So much for the biofuel revolution: it’s not only pushing up grain prices, and eating up arable land; it’s drinking the very water we need to grow crops.
“We are making a big mistake,” Nestle’s chief executive, Peter Brabeck, told peers at Davos: “trying to solve the energy problem by making the nutrition problem worse.” Even oil eats water, he stresses. Some 2.5 litres go into processing a litre of petrol, and dozens of times that much gets pumped into tar sands as steam to extract each litre of oily goo. Neville Isdell, Brabeck’s counterpart at Coca Cola, agrees that joined-up thinking is vital. The water industry is projected to suck up a third more electricity within two decades, while worldwide energy consumption doubles – if the resources still exist to keep pace with it. What’s more, the U.S. already uses 40 percent of its ever scarcer water to generate power. “Unless we raise the issue as being a holistic issue, we’re going to get simple solutions,” Isdell warns. The consequences couldn’t be starker, particularly if we keep heating up the planet by burning carbon. “Unless we put limits on that at much lower levels than today’s,” says Fred Krupp, of the lobbying group Environmental Defense, “then we are walking into hell for water shortages.”
Just how bad might it get? Assuming the global population keeps growing as forecast, with ever more urban residents on rising incomes, demand for food will roughly double by the middle of the century, while water use might even triple. A generation before that, half the people on earth could be living on arid land, struggling to cultivate it and scavenging for drinking water, as one in five have to today. Conflict seems as inevitable as it has been for millennia. From Darfur to Damascus and beyond, water (or the lack of it) bubbles under hotspots like magma, erupting into wars that could engulf dozens of contested regions within decades. The crisis is multidimensional, from its ecological roots to the implications for democracy and human rights, depending on who profits and who pays.
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