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Stockholm Waterfront No 2, 2018 New decision-making tools Mexico City is testing make it easier to analyze a di erent approach to climate risk in water infra- meet growing concerns structure projects. over water scarcity. STOCKHOLM waterfront #2 | JULY | 2018 Ecosystems & Economics Finding answers in nature and doughnuts Aquifers in danger – looming threat to the world’s groundwater THE FORUM FOR GLOBAL WATER ISSUES • PUBLISHED BY STOCKHOLM INTERNATIONAL WATER INSTITUTE EDITORIAL & CONTENT The search for solutions in nature It is an exciting moment in time. The traditional view on the relationship between ecosystems and human 4 development is increasingly being challenged. In the past nature has at times been seen as a foe to be con- quered, but we’re now starting to realize that nature in fact holds the key to solving many of humanity’s most pressing challenges. Yet, the shift is not happening fast enough. Investment in nature-based solutions and ecosystems research is clearly insuffi cient. To hopefully help speed things up, The world’s natural aquifers at risk this year’s World Water Week will explore some of these issues through its theme Water, ecosystems and human development. In this issue of WaterFront we also look at the connec- 9 12 tions between humans and nature, such as the alarming threat to the world’s major aquifers on page 4. There is also plenty of good news, with signs of a global rethink – on page 12 you can read about how the World Bank wants to bring ecological expertise into their projects at an earlier stage and a story on page 14 explores new tools that help Green solutions Freshwater resilience by design infrastructure planners calculate climate risks. To learn more about how economists are trying to bring ecosys- tems into the equation, turn to page 18. Last, but not least, don’t miss Torkil Jønch Clausens’ refl ections of what really 18 14 happened at the High-level Political Forum on page 22. We hope that you will also like the visual facelift we’ve given WaterFront to make it more accessible. Enjoy the read! HowHow much much is aa river river worth worth? ? Tools assess risk New decision-making tools Mexico City is testing make it easier to analyze a di erent approach to Torgny Holmgren climate risk in water infra- meet growing concerns structure projects. over water scarcity. Executive Director, REGULAR FEATURES: STOCKHOLM SIWI waterfront #2 | JULY | 2018 Ecosystems 03 BRIEFING Water news round-up & Economics 23 CALENDAR Events coming up Finding answers in nature and doughnuts The printing process and paper have been Aquifers in danger – certifi ed according to looming threat to the world’s groundwater the Nordica Swan label for environment quality. ISSN 1102 7053 THE FORUM FOR GLOBAL WATER ISSUES • PUBLISHED BY STOCKHOLM INTERNATIONAL WATER INSTITUTE NO. 2 • JULY • 2018 • PUBLISHER Torgny Holmgren | Executive Director, Stockholm International Water Institute (SIWI) EDITORIAL STAFF PHOTOS analyses by some of the world’s most knowledge- Maria Sköld | Editor All photos, if not stated diff erently, able water writers. It is published in print and Marianne Engblom| Graphic Designer are credited iStock. digitally by Stockholm International Water Institute, and is free of charge. Contact: [email protected] STOCKHOLM WATERFRONT STOCKHOLM INTERNATIONAL WATER INSTITUTE Stockholm WaterFront is a quarterly magazine Box 101 87 2018 EDITORIAL BOARD that aims to inform the global water debate and Visiting Address: Linnégatan 87A Anton Earle be a source of knowledge and inspiration for SE-100 55, Stockholm, Sweden Lotta Samuelson professionals worldwide with an interest in water Tel: +46 8 121 360 00 David Michel issues. Stockholm WaterFront mixes popular Fax: +46 8 121 360 01 science articles with news reporting and carries www.siwi.org Disclaimer: The opinions expressed within this publication are those of the authors and are not necessarily shared by SIWI or its affi liates. briefing Growing threat of The top ten confl ict issues uranium in Indian Which environmental problems cause most confl icts around the world? The answer groundwater can be found in the Environmental Justice Atlas, published by the Institute of Envi- ronmental Science and Technology at the Autonomous University of Barcelona. The According to a study published in Envi- authors have collected and categorised about 2500 ecological distribution confl icts. ronmental Science & Technology Letter, Water plays a key role in almost all of them, directly or indirectly. uranium contamination of the ground- Landgrabbing, with more than 600 ongoing confl icts. One reason is the water in India is a growing problem. Avner booming market for palm oil, which drives farmers from their land and cause Vengosh, professor of geochemistry and deforestation, water pollution and infertile soils. water quality at Duke University in North Renewable energy confl icts, where 326 of the 357 listed confl icts relate to Carolina, lead author of the study, links water infrastructure. Mega-dams force people to relocate and can wreak havoc the uranium build-up to falling ground- on ecosystems, causing rivers to run dry. water levels in combination with nitrate Mega-mining is at the centre of 270 confl icts. In Latin America and Western pollutants from chemical fertilisers, which Africa local communities fear new technology lead to chemical pollution and make uranium more soluble. over-extraction of water. Unburnable fuels, 178 confl icts. The fossil fuel industry has moved extraction to remote areas, but Arctic drilling, oil sand drilling, fracking and deep-water extraction are met with opposition. Fresh water contamination and devastation of marine systems are issues of concern. Trash economy, 126 confl icts. People living near waste sites are worried by many health issues, including water pollution. Sand mafi as, 82 confl icts. Fighting for fi sh, 77 confl icts. Over-fi shing and pollution from fi sh farms create confl icts in many parts of the world. In China, the Atlas accounts for 76 internal confl icts over for example air quality, coal-fi red power plants and wastewater issues. Nuclear power continues to raise criticism with 57 confl icts registered. Pesticides are linked to water pollution and many other health problems, 23 related confl icts are on fi le. Pakistan may see a 75 per cent increase in heat waves by 2030, according to a Scientists worry new report from the COMSATS Insti tute 75 % of Informati on Technology. about biodiversity research in Brazil Brazil is one of the most biodiverse countries in the world and often at the New water strategy for Africa forefront of biodiversity research. But In a chapter of a new book, Professor Malin Falkenmark argues researchers worry that a new law may that a shift in water thinking is needed if Africa is is to meet soon change this. Attempting to prevent present and future challenges. biopiracy, Brazil has made it mandatory Professor Falkenmark, who is Senior Advisor to SIWI, has for both local and international research- long called for an African Blue-Green Water Revolution. In ers to register all their activities in the arid Africa, blue water (i.e. liquid freshwater in for example national system for genetic resource streams or groundwater) is insuffi cient and with rapid urban- management, SisGen, with 5 November ization and population growth, farmers cannot expect to have as the deadline. In a letter to the scientifi c access to this kind of water. Instead, farming methods must journal Science, 16 scientists warn that the make clever use of green water (from precipitation, evapora- extremely detailed procedure combined tion and retained in soil). Malin Falkenmark with heavy fi nes for non-compliance, The article Shift in Water Thinking Crucial for Sub-Saharan Africa’s Future can could lead to a collapse of biodiversity be found in Assessing Global Water Megatrends, edited by Asit K. Biswas, Cecilia research in Brazil. Tortajada and Philippe Rohner. WATERFRONT # 2 | july 2018 3 FOCUS THE WORLD’S NATURAL AQUIFERS AT RISK In Sri Lanka, groundwater has taken on increased importance, with new wells being built. Photo: Dominic Sansoni / World Bank 4 WATERFRONT # 2 | july 2018 THE WORLD’S NATURAL AQUIFERS AT RISK Text | Randall Hackley When scientists evaluating satellite data say a third of the planet’s major aquifers are being unsustainably depleted, threatening groundwater reserves and putting ecosystems and life-sustaining water supplies at risk, perhaps it’s time to more seriously assess the global severity. Here’s a look at some of the most stressed aquifers on Earth and a snapshot of the reasons why “red ags’’ are being raised about the amount of water underground that’s declining amid population growth, urban, industrial and farming demand, and poor management. The Arabian aquifer system, whose “hotspots” of aquifer depletion in a groundwater accounts for about 84 2016 report. The aquifer is almost liquid per cent of total freshwater use across gold, supplying California’s agricultural the arid Arabian Peninsula, is among breadbasket that provides 25 per cent of the most overstressed. There, a study the US food and three-quarters of irri- showed 10 countries from Saudi Arabia gated land in the state. to Iraq, Jordan, Yemen and Syria, are Over-pumping of the Central Valley essentially at Ground Zero as the planet aquifer, heavily depleted by irrigating- warms amid climate change: Almost 90 thirsty crops such as almonds during per cent of the water withdrawn from droughts, including California’s recent the Arabian aquifer goes to agriculture, 5-year one, caused some roads and farm- often paid for by oil revenues that sub- land to subside or sink several metres sidize the energy-intensive pumping of (feet), despite the system’s medium groundwater. water recharge rate. In a world in which two of fi ve people, or 40 per cent of the planet’s population, Farmers rely heavily on groundwater live in water-stressed areas, and weather pumped from wells, from California extremes are making droughts more and the US Midwest, to Morocco, Spain debilitating, the groundwater stored in and much of India.
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