China in the Mekong: building dams for whose benefit?

A new policy brief from the Oxford University Global Economic Governance Programme discusses the controversies of Chinese investment in hydropower in the Mekong. It calls for action by governments and Chinese hydropower companies to ensure responsible water governance and safeguard livelihoods and biodiversity in the basin.

China is a “hydro-superpower”. How it harnesses the resources and energy potential of the international rivers flowing through its territory can have a significant – and at times, irreparable – impact not only on the complex ecosystems sustained by these rivers, but also on local communities both within and downstream of its borders. In mainland Southeast Asia, Chinese-led hydropower schemes are transforming the region’s landscapes and waterscapes. Designed to meet growing Chinese and regional power demands, these dams often become a “necessary evil”: necessary to national and regional development, but harmful to important rivers like the Mekong, Irrawaddy and Sesan, and the livelihoods that are tied to their natural ebbs and flows.

The policy brief make the following recommendations:

The Chinese government must enforce its domestic regulations for investments overseas and encourage Chinese firms to comply with indsutry standards.
Chinese hydropower companies must mainstream social and environmental impact assessments in the early stages of project development and engage directly with affected communites.
Governments in the Mekong basin should institutionalise participatory mechanisms in formal decision-making and provide public access to information on project development.

The policy brief is written by Dr Pichamon Yeophantong, Global Leaders Fellow currently based in the Niehaus Center for Globalization and Governance, Woodrow Wilson School of Public and International Affairs, Princeton University.

Lake Turkana under threat from hydropower dam and irrigation development

Lake Turkana in the Kenyan Rift valley is the world’s largest desert lake but could shrink dramatically due to a hydropower dam being built upstream and plans for large-scale irrigation. This could be another Aral Sea disaster, says a new Oxford University study

The Gibe III hydropower dam is currently under construction on the Omo River which supplies 90 per cent of Lake Turkana’s water. Due for completion in 2014, the dam will permanently alter the flow of the river which will have devastating impacts on floodplain ecology, the productivity of the Lake’s fisheries and the livelihoods of the local population.

By regulating the flow of the river, the dam will also enable massive irrigation schemes in the Lower Omo. Irrigation development being planned by Ethiopia could abstract up to 50 per cent of the river’s inflow into Lake Turkana. The research shows that this could cause the lake to drop from 30 metres to under 10 metres in depth, being reduced to two small lakes.

This study, written by Dr Sean Avery for Oxford University’s African Studies Centre, is one of the outcomes of the AHRC-funded project, ‘Landscape people and parks: environmental change in the Lower Omo Valley, southwestern Ethiopia’, run by Oxford’s Professor David Anderson and Dr David Turton between 2007 and 2010.

View the illustrated booklet ‘What Future for Lake Turkana?’

Read the full report

Scientists find vast new freshwater sources under the sea

Untapped reserves of fresh groundwater – up to 0.5 million km3 – are buried beneath continental shelves around the world, according to new findings published in the international scientific journal Nature,

The research was led by Vincent Post (Flinders University, Australia) and co-authored by Mike Edmunds (Oxford), Jacobus Groen and Henk Kooi (Amsterdam), Mark Person (New Mexico), and Shemin Ge (Colorado).

These reserves were formed during the glacial periods over thousands of years when on average the sea level was much lower than it is today, and when the coastline was further out, rainwater would infiltrate into the ground and fill up the water table in areas that are nowadays under the sea. When the sea level rose due to the melting ice caps some 9000 years ago these areas were covered by the ocean. Many aquifers were – and are still – protected from seawater by overlying layers of clay and sediment.

This is good news since this water is accessible to many of the world’s burgeoning coastal cities suffering from water stress. But, it should be stressed, these waters are non-renewable and would need to be ‘mined’. Yet, the reserves are estimated at 100 times the amount we have already extracted from the earth’s subsurface.

In Europe freshwater has been found at and beyond the English Channel and North Sea coasts of the UK and the Netherlands, areas that were exposed as land masses for much of the past 80 000 years. Other areas with considerable offshore reserves include North America, China, Indonesia, Australia and South Africa.

There are two ways to access this water – through platforms out at sea or by drilling from the mainland or islands close to the aquifers. While offshore drilling can be very costly, this method should be assessed and considered in terms of cost, sustainability and environmental impact against other water sources such as desalination, or even building large new dams on land.

But while nations may now have new reserves of freshwater offshore, they will need to take care to not contaminate it. Boreholes drilled into the aquifers for oil and gas exploration or production, or targeted for carbon dioxide disposal can threaten the quality of the water.

The study “Offshore fresh groundwater reserves as a global phenomenon” by Vincent E.A. Post, Jacobus Groen, Henk Kooi, Mark Person, Shemin Ge and W. Mike Edmunds is published in the latest issue of Nature.

Reference

Post, V.E.A., Groen, J., Kooi, H., Person, M., Ge, S. and Edmunds, W.M. (2013) Offshore fresh groundwater reserves as a global phenomenonNature, 504: 71-78

“Are weather forecasts still for wimps?” asks Steve Rayner

Professor Steve Rayner questioned the usefulness of long-range weather forecasting as a tool to improve water resource management in a lecture at Flinders University, Australia on 26 November.

The lecture ‘Are weather forecasts still for wimps?’ discussed the historic problems with using long-term weather modelling. However, Professor Rayner suggested that recent improvements in the accuracy of forecasts and the capacity of staff means that this tool holds greater potential for improving water resource management around the world.

Steve Rayner is James Martin Professor of Science and Civilization at Oxford University’s School of Anthropology and Museum Ethnography and Director of the Institute for Science, Innovation and Society.

Read more on the Flinders University blog.

Nick Hankins appointed editor-in-chief of new Elsevier water journal

Dr Nick Hankins of the Department of Engineering Science has been appointed as editor-in-chief of the Journal of Water Process Engineering.

The Journal of Water Process Engineering is a new journal which will publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing. The journal will particularly focus on contributions involving environmentally, economically and socially sustainable technology for water treatment.

The first issue of the Journal of Water Process Engineering, comprising of invited papers, will be published towards the end of March 2014. Dr Hankins will co-edit the journal with  Professor Abdul Wahab Mohammed  of the Universiti Kebangsaan, Malaysia.

Oxford awarded Doctoral Training Partnership in Environmental Research

Oxford University has been awarded funding for a Doctoral Training Partnership (DTP) – a 4-year D.Phil. programme which offers a world-class, multidisciplinary training environment for the next generation of leaders working at the frontiers of environmental research.

Oxford is one of 15 universities to receive a share of a £10 million investment from the Natural Environment Research Council (NERC). The DTP will provide full funding for 120 students over the next five years.

The new DTP programme is designed to promote and facilitate interdisciplinary research, that will provide students with skills, expertise and knowledge relevant to future careers in academia and industry. The course will start with a broad interdisciplinary training spanning the departments of Earth Sciences, Zoology, Geography, Archaeology, Physics, and Plant Sciences.

The programme will draw on collaborations with many partner institutions, including the British Geological Survey, the Royal Botanic Gardens, the Rutherford Appleton Laboratory and the Met Office.

An open day for potential applicants will be held at the Department of Zoology on Wednesday 27 November. Applications close on 24 January 2014.

Read the Oxford University press release

Read the NERC press release

Visit the Oxford University Doctoral Training Partnership in Environmental Research website

 

Grant won to investigate the resilience of water infrastructures

A team of Oxford researchers have been awarded funding to study how resilient water infrastructures are to natural and man-made threats. The project is a collaboration with the University of Massachusetts and Sandia National Laboratory in the United States.

The Oxford team is led by Professor Jim Hall and includes the researchers Drs Dustin Garrick and Raghav Pant, and DPhil candidates Edoardo Borgomeo and Scott Thacker.

Together with engineers in the United States, the team will develop methodologies for assessing risks to water security and modelling the resilience of piped water networks at a national scale. This research will provide new knowledge to inform the planning and design of water supply systems. It help target measures to increase the resilience of water infrastructures.

The project has been awarded funding from ‘Clean Water for All’, a new trans-Atlantic collaboration which brings leading water engineers from the United States and the UK together to tackle problems of providing clean, sustainable water supplies. Five projects have been funded, with support from the Engineering and Physical Sciences Research Council (EPSRC) and the National Science Foundation (NSF) in the USA.

Read the EPSRC Press Release

Developing international guidance for strategic drought risk management

Paul Sayers, Senior Visiting Fellow at the School of Geography and the Environment, is leading a project to identify best practice in drought risk management, in collaboration with WWF and the Chinese Government.

The Chinese Government has committed significant resources to address water resource management issues across the country. One challenge that the country faces is drought, which occurs regularly in China, often with very significant social, economic and environmental consequences. As climate change leads to increased uncertainty about future rainfall patterns, and potentially also leads to an increase in the frequency and severity of droughts, it is important that sophisticated drought planning and management is mainstreamed in China.

As part of an on-going collaboration, WWF and the Chinese Government’s General Institute of Water Resources & Hydropower Planning (GIWP) aim to collate and synthesise lessons from international experiences in this field, identify world best practice guidelines and influence the upcoming revision of Chinese water policy.

Paul Sayers will be attending a workshop in Suzhou, China, October 2013 to discuss strategic approaches to drought planning as part of this ongoing collaborative WWF/GIWP research project.

Making clean drinking water universally available is achievable

Making clean drinking water globally accessible is one of the biggest challenges of this century. Yet, a new study by Oxford University contends that this goal is achievable if the key elements of good governance and management are adopted.

The study proposes a framework built on examples of good practice in South Asia and sub-Saharan Africa, areas which the authors argue present the most severe challenges of all the developing countries. They warn, however, that the scale of investment necessary to update the often neglected, ageing infrastructure of pipelines or water pumps goes beyond the narrow project timeframes favoured by politicians. The findings are published in a landmark collection of papers on water security, risk and society by the journal Philosophical Transactions of the Royal Society A.

The study says the problem of providing clean water is most acute in developing countries, particularly in Africa, where creaking infrastructures struggle to keep pace with fast-growing urban populations; in rural areas, millions of water pumps stand unused waiting to be repaired. Despite hitting the Millennium Development Goal for drinking water access in 2012, over 780 million people still do not have safe and reliable drinking water, says the report, resulting in largely preventable health problems that most affect women and children.

Based on nine case studies in Cambodia, India, Kenya, Uganda and Senegal, the authors analysed new data in rural and urban areas to compare what the authors call the under-researched aspects of water security: the institutional side of how water supplies are delivered, their operation and management systems. They examined water payment systems; and the quality of service, such as how quickly leaks or pumps were fixed, and whether populations had water on demand or a regularly disrupted service.

The study suggests that a critical factor in all cases is to have a good system for maintaining existing water supplies. Additionally, new information systems were found to be important for improving the way the quality of service was monitored. In West Africa, for instance, a structured crowd sourcing platform is used by water scheme managers to input weekly data via a mobile phone application; in East Africa, a mobile-enabled monitoring system is leading to faster repair times for water pumps.

Late bills are still a huge problem in developing countries, so consequently there is often a failure to recoup the service costs needed to invest in the infrastructure. The study highlights a successful mobile water payment system adopted in one Kenyan city, which was the preferred way of paying bills for 85% of customers who would otherwise often have to queue in water company offices. More efficient and transparent payment systems were not only found to reduce debts, but also helped root out corrupt practices which diverted water payments into illegitimate channels.

The study warns that barriers to progress include the vested interests of individuals benefiting from the status quo, and misguided public investments which are short-term and without any real measures of performance. However, the authors argue that these findings provide concrete evidence to demonstrate how drinking water risks can be managed and reduced ‘even in the most difficult and challenging contexts’.

Lead author Dr Rob Hope, from the Smith School of Enterprise and the Environment at the University of Oxford, said: “We hope this study provides a framework to design policy and guide investments to systematically reduce drinking water risks in urban and rural contexts. These case studies demonstrate a variety of approaches taken by countries in some of the most challenging circumstances.”

“They set benchmarks by which others can measure their own progress. Our examples include water managers who have introduced both bonus systems to reward good performance and competitions between different areas to drive up standards of service. Some water service providers have found ways of giving subsidies to expand access to water customers on the lowest incomes. There are other examples of initiatives to promote greater efficiency which can mean leaks or water pumps get fixed more quickly or water rationing can be replaced with a continuous service.”

“Despite the often gloomy outlook voiced by some on the prospects for making drinking water more accessible, these case studies in sub-Saharan Africa and South Asia show there are realistic pathways to transform water services, thereby potentially improving the health of the millions of people who depend upon them.”

Meanwhile in the same collection of papers, Professor David Bradley of Oxford University, with Professor Jamie Bartram, uses an analysis of the effective monitoring programme developed to measure the success of the Millennium Development Goals (MDGs) for the provision of domestic water supply and basic sanitation to see how it can be further improved and possibly be applied to a broader goal of water security.

Reference

Robert Hope and Michael Rouse (2013) Risks and responses to universal drinking water security. Philosophical Transactions of the Royal Society A, vol. 371, no. 2002.

 

Oxford University edits a themed issue of Philosophical Transactions A on Water Security, Risk and Society

Professors Jim Hall and David Grey, and Drs Dustin Garrick, Simon Dadson and Rob Hope, have organised and edited a landmark collection of papers, an outcome of the 2012 international conference Water Security, Risk and Society.

The papers demonstrate the growing scale of water security risks. For example, over 45% of the global population is projected to be exposed to water shortages for food production by 2050 (Falkenmark), and South American cities have experienced a doubling of risks associated with extreme rainfall from 1960-2000 (Vorosmarty). Modelling demonstrates that climate hazards are an impediment to economic growth (Brown).

The agenda-setting themed issue includes eight papers from Oxford University authors and engages multiple dimensions of water security, ranging from drinking water, food production and energy to climate risks, transboundary rivers and economic growth. Risk provides the basis for a unifying framework to bridge across multiple disciplines and science-policy divides.

Fifteen papers are organised in three sections to: frame the policy challenges and scientific responses to water security from a risk perspective; assess the evidence about the forces driving water insecurity; and examine responses to water insecurity at multiple scales.

Recognising the need for interdisciplinary science to respond to unprecedented water security challenges, the University of Oxford organised the international conference on Water Security, Risk and Society in April 2012. The conference convened 200 leading thinkers from science, policy and enterprise in 30 countries to take stock of the scientific evidence on water security risk and prioritise future interdisciplinary research.

Taken together, these papers provide strong justification and strategic priorities for policy-driven science in the lead up to new development goals in 2015 and beyond.

 

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

Theme Issue ‘Water security, risk and society’ compiled and edited by Jim Hall, David Grey, Dustin Garrick, Simon Dadson and Rob Hope

November 13, 2013; Vol. 371, No. 2002


Preface
Jim Hall, David Grey, Dustin Garrick, Simon Dadson, and Rob Hope

Opinion piece: Water security in one blue planet: twenty-first century policy challenges for science
David Grey, Dustin Garrick, Don Blackmore, Jerson Kelman, Mike Muller, and Claudia Sadoff

Opinion piece: Catalysing sustainable water security: role of science, innovation and partnerships
John Beddington

Opinion piece: The role of technology in achieving water security
Ian Thompson

Research article: Risk-based principles for defining and managing water security (open access)
Jim Hall and Edoardo Borgomeo

Research article: Extreme rainfall, vulnerability and risk: a continental-scale assessment for South America
Charles J. Vörösmarty, Lelys Bravo de Guenni, Wilfred M. Wollheim, Brian Pellerin, David Bjerklie, Manoel Cardoso, Cassiano D’Almeida, Pamela Green, and Lilybeth Colon

Research article: Growing water scarcity in agriculture: future challenge to global water security
Malin Falkenmark

Review article: Water security, global change and land–atmosphere feedbacks
Simon Dadson, Michael Acreman, and Richard Harding

Research article: A cost-effectiveness analysis of water security and water quality: impacts of climate and land-use change on the River Thames system
Paul Whitehead, Jill Crossman, Bedru Balana, Martyn Futter, Sean Comber, Li Jin, Dimitris Skuras, Andrew Wade, Mike Bowes, and Daniel Read

Research article: Water security in the Canadian Prairies: science and management challenges
Howard Wheater and Patricia Gober

Review article: Domestic water and sanitation as water security: monitoring, concepts and strategy (open access)
David J. Bradley and Jamie K. Bartram

Review article: Risks and responses to universal drinking water security
Robert Hope and Michael Rouse

Research article: The politics of African energy development: Ethiopia’s hydro-agricultural state-building strategy and clashing paradigms of water security
Harry Verhoeven

Research article: The governance dimensions of water security: a review
Karen Bakker and Cynthia Morinville

Research article: Managing hydroclimatic risks in federal rivers: a diagnostic assessment
Dustin Garrick, Lucia De Stefano, Fai Fung, Jamie Pittock, Edella Schlager, Mark New, and Daniel Connell

Research article: Is water security necessary? An empirical analysis of the effects of climate hazards on national-level economic growth
Casey Brown, Robyn Meeks, Yonas Ghile, and Kenneth Hunu