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NEXUS Knowledge


NEXUS in Practice

by the Ministry of Energy and Mines (Laos), TheunHinboun Power Company, Statkraft Oslo, Electrcité du Laos, and GMS Lao Company Ltd.

Modern Agriculture

by Hamburg University of Technology (TUHH), Germany

Modern Agriculture

by University of KwaZulu-Natal, South Africa, and Bremen Overseas Research and Development Association (BORDA)

NEXUS Resources

02 Dec 15


The UNSGAB Journey

United Nations Secretary-General’s Advisory Board on Water and Sanitation (2004-2015)

20 Aug 15


United Nations University (UNU-FLORES)

presented on the 2015 Word Water Week Stockholm

03 Jul 15


Critical Roles of Water in Achieving the proposed SDGs: A Nexus Perspective

held by Douglas Merrey and Seleshi Bekele Awulachew (UN-DESA) at the Workshop on “Capacity Development in Advancing Water and Sustainable Development”, United Nations, New York City, NY

20 Jan 15


Water is at the heart of climate change adaptation

A video to show the importance of water in striving for climate change resilience.

19 Dec 14


A Guide to Results-Based Financing in Water Investments

Results-based financing has been mostly used for water supply and sanitation investments but some questions remain unanswered.

20 Nov 14

Case Study

Dar es Salaam, Tanzania. Demonstrating the Urban NEXUS approach to link water, energy and food resources in schools

The Urban NEXUS pilot project harnessed opportunities to link water and sanitation, energy, food and waste, solutions which would have otherwise been missed with a singular development application.

07 Nov 14


Budapest Water Summit Bulletin

Budapest Water Summit Highlights: Wednesday, 9 October 2013

24 Sep 14


Nina Weitz - Tackling trade-offs in the food-water-energy nexus

Nina Weitz, Stockholm Environment Institute, 2014, looked during the 2014 World Water Week in Stockholm, Sweden, at the food-water-energy nexus and how countries across three continents are managing the challenge of reducing poverty while developing sustainably.

13 Sep 14


Water Allocation between Agriculture and Energy: Economic vs Social values

by M.M.M. Aheeyar and M.A.C.S. Bandara held at the 2014 World Water Week in Stockholm, Sweden

28 Aug 14


2014 World Water Week Programme

World Water Week is organised by the Stockholm International Water Institute (SIWI) and takes place in Stockholm, Sweden. It has been the annual focal point for the globe’s water issues since 1991.

11 Jun 14


Sustainability in the Water-Energy-Food Nexus

By Adrian Atkinson held on the Bonn 2014 Nexus Conference „Sustainability in the Water-Energy-Food Nexus”, 19-20 May 2014.

04 Jun 14


Connecting the water, food and energy nexus with water reuse for urban agriculture in Namibia: Modeling water, nutrient and salt flows

By L. Woltersdorf, J. Felmeden, S. Liehr, Institute for Social-Ecological Research (ISOE), and K. Müller, Technical University Darmstadt, held on the Bonn 2014 Nexus Conference „Sustainability in the Water-Energy-Food Nexus”, 19-20 May 2014.

03 Jun 14


Clean Energy and Water: Assessment of Mexico for improved water services with renewable energy

Mexico is a diverse nation with an estimated population of over 113 million people. Vast natural resources and strained water supplies make Mexico an interesting setting for studying the energy-water nexus. Despite its energy status as a major oil producing country, Mexico struggles with water stress with nearly all of its land area experiencing or approaching physical water scarcity. With over 11 million people lacking access to water supplies and 22 million lacking access to sanitation, there is a pressing need for development of the water sector in both rural and urban settings. Solving much of Mexico’s water issues requires energy for extracting, transporting, and treating water where it is needed most. Yet such energy use is not always possible since 3 million people are not connected to an electricity grid. Consequently, there is an opportunity to improve water services through use of distributed renewable energy technologies. Various policies and technologies are relevant to the energy-water nexus on a decentralized scale. In particular, distributed rainwater collection and solar hot water heating are effective technologies that deliver water services solely from renewable energy, directly offsetting use of primary fuels or fossil fuel-generated electricity. Additionally, policy levers such as mandates and right-pricing of water and energy can help encourage sustainable operation of established water and energy systems. The efficacy of integrating renewable energy and water systems is demonstrated through case studies of northern Mexico and the Mexico City Metropolitan area. Particularly important factors for technology development include consideration of performance parameters, cultural acceptance, willingness to pay, and financing. Based on this analysis, we deduce the following key findings: Solar hot water heating can reduce fuel use when appropriately implemented; Affordable financing is essential for technology adoption; Understanding a customer’s ability and willingness to pay is important; Fresh ideas for water and energy conservation can make large strides towards mitigating the acute challenges at the energy-water nexus; Information communication technology (ICT) can be an effective means of education. By C.W. King, K.M. Twomey, A.S. Stillwell, and M.E. Webber. Prepared for the International Development Research Centre, Ottawa, Ontario, Canada, December 2011.

09 Apr 14

Policy Brief

SEI Research Synthesis: The Water-Energy-Food Nexus

SEI has done a lot of work focused on the water-energy- food nexus, a topic that is deeply relevant to sustainable development planning and policy. This brief draws on SEI’s expertise in hydrology, agriculture, and water and energy systems analysis, and leverages two powerful SEI-built tools: the Water Evaluation and Planning system (WEAP) and the Long-range Energy Alternatives Planning system (LEAP). It also builds on SEI’s on-the-ground research on livelihoods, energy access, sanitation and other issues. The brief describes the ongoing research on the water-energy-food nexus, starting with key insights from SEI’s studies and interactions with stakeholders to date.

29 Mar 14


Food, water, and energy security in South Asia: A nexus perspective from the Hindu Kush Himalayan region

By Golam Rasul. - With limited land resources, inadequate energy supply, and growing water stress, South Asia faces the challenge of providing enough water and energy to grow enough food for the burgeoning population. Using secondary data from diverse sources, this paper explores the food, water, and energy nexus from a regional dimension, emphasizing the role of Hindu Kush Himalayan (HKH) ecosystem services in sustaining food, water, and energy security downstream. The analysis reveals that the issues and challenges in the food, water, and energy sectors are interwoven in many complex ways and cannot be managed effectively without cross-sectoral integration. The most distinctive feature of the nexus in South Asia is the high degree of dependency of downstream communities on upstream ecosystem services for dry-season water for irrigation and hydropower, drinking water, and soil fertility and nutrients. This finding suggests that along with cross-sectoral integration to improve the resource-use efficiency and productivity of the three sectors, regional integration between upstream and downstream areas is critical in food, water, and energy security. Within the nexus approach in South Asia, equal attention should be paid to management of HKH ecosystems–especially the watersheds, catchments, and headwaters of river systems–and to tapping the potential of collaborative gains in water, hydropower, and other ecosystem services through coordination across HKH countries.

04 Feb 14


Targeting the Good Ecological Status of French Waters at the nexus of Food and Energy Development

Lessons to be learnt in preparation of the good ecological stauts are presented by Dominique Dorn, General Commissioner and Interministerial Delegate for Sustainable Development of the Ministry of Ecology, Sustainable Development, Transport and Housing of France. He shows that local knowledge among others is a key factor for the water-biodiversity-food-energy nexus approach. Held at the Global Forum on the Environment OECD, Paris, 26 Oct 2011

28 Jan 14


Interlinkages and trade-offs between water and energy

Presentation held by Diego J. Rodriguez, The World Bank, on Jan 14th, 2014, at the United Nations Office to Support the International Decade for Action ‘Water for Life’ 2005-2015

25 Jan 14


Making the South African TIMES (SATIM) Energy System Model “Water Smart”

Presentation by Adrian Stone, University of Cape Town, held on Jan 13th, 2014, at the United Nations Office to Support the International Decade for Action “Water for Life” 2005-2015

20 Jan 14


Water and Energy Challenges

Presentation on Water and Energy Nexus and Challenges by Michela Miletto, World Water Assessment Programme (WWAP), Coordinator, held on Jan 14th 2014, at 2014 UN-Water Annual International Zaragoza Conference.

06 Dec 13


Water-Food-Energy Nexus: Towards a widening of the water agenda

This report aims to widening the water agenda by an approach that requires a new thinking: intersectoral, international, interregional and between different stakeholders: If we fail to move towards a new water agenda, towards a sustainable use of natural resources such as water and energy, the social and economic consequences will be enormous.

03 Sep 13

Book Publication

On water security, sustainability, and the water-food-energy-climate nexus

The role of water security in sustainable development and in the nexus of water, food, energy and climate interactions is examined from the starting point of the definition of water security offered by Grey and Sadoff. Much about the notion of security has to do with the presumption of scarcity in the resources required to meet human needs. The treatment of scarcity in mainstream economics is in turn examined, therefore, in relation to how each of us as individuals reconciles means with ends, a procedure at the core of the idea of sustainable development. According to the Grey-Sadoff definition, attaining water security amounts to achieving basic, singlesector water development as a precursor of more general, self-sustaining, multi-sectoral development. This is consistent with the way in which water is treated as “first among equals”, i.e. privileged, in thinking about what is key in achieving security around the nexus of water, food, energy and climate. Cities, of course, are locations where demands for these multiple resource-energy flows are increasingly being generated. The paper discusses two important facets of security, i.e., diversity of access to resources and services (such as sanitation) and resilience in the behavior of coupled human-built-natural systems. Eight quasi-operational principles, by which to gauge nexus security with respect to city buildings and infrastructure, are developed.

31 Oct 12


A Regional Perspective on Water-Food-Energy

held at the 10th European Conference: The Implementation of the Water Framework Directive Europe‐INBO, by Caner Aktaş, Boğaziçi University

29 Oct 12

Online Library

UN Documentation Centre on Water and Sanitation (UNDCWS)

A tremendous amount of valuable water and sanitation related information is generated every year by different agencies, programmes and initiatives of the United Nations system. Unfortunately this information is scattered, making it difficult for stakeholders to access relevant information on time in order to make informed decisions. Often, stakeholders are not familiar with the mandate of each agency, its main areas of competence and specific focus. Developed by the UN-Water Decade Programme on Advocacy and Communication (UNW-DPAC) with the support of the Municipality of Zaragoza, Spain, the UN Documentation Centre on Water and Sanitation (UNDCWS) acts as a clearinghouse on water and sanitation-related information materials produced by the United Nations system (programmes, agencies, etc.).

25 Oct 12


The Water-Energy-Food Nexus and Climate Change in Southern Africa

Held at the Second Annual Conference on Climate Change and Development in Africa Addis Ababa, 19-20 October 2012, by Gisela Prasad, Energy Research Centre, University of Cape Town

17 Oct 12


Joint Monitoring Programme for Water Supply and Sanitation (JMP)

This website is a resource for decision makers, researchers, and civil society at large to learn about the JMP’s activities, the status of water supply and sanitation coverage and its importance for our health and well-being, and to obtain detailed statistics about the use of water and sanitation facilities at different scales (global, regional and country-level). The WHO/UNICEF Joint Monitoring Programme (JMP) for Water Supply and Sanitation is the official United Nations mechanism tasked with monitoring progress towards the Millennium Development Goal (MDG) relating to drinking-water and sanitation (MDG 7, Target 7c), which is to: “Halve, by 2015, the proportion of people without sustainable access to safe drinking-water and basic sanitation”.

17 Oct 12

Web Platform

Gender and Water Alliance

The Gender and Water Alliance (GWA) promotes women’s and men’s equitable access to and management of safe and adequate water, for domestic supply, sanitation, food security and environmental sustainability. GWA offers a number of resources on its website, notably its resource guide on gender and IWRM, aimed at assisting water and gender practitioners and professionals as well as persons responsible for gender mainstreaming.

15 Oct 12


Water Services Management and Governance: Lessons for a Sustainable Future

The book focuses on water services (water supply, wastewater services) and deals with connections between water resources and services and water resources. It covers water supply mainly in urban communities, sanitation and pollution control and water resources and their linkages to water services. This book is divided in to four key sections relating to governance frameworks, technology and socio-ecological interactions, government and governance, and long terms policies. The chapters analyse the complexity of the water services sector based on a historical analysis of developments within the sector. The underlying conviction is that only by understanding past trends, processes and developments can the current situation in the water services be understood. Only through this understanding can policies for sustainable water services in the future be formulated. The four key sections relate to governance frameworks, technology and socio-ecological interactions, government and governance, and long terms policies. “Water Services Management and Governance” raises awareness that an understanding of the past is a necessity to explore potential, probable and preferable futures. It is an essential basis for water sector reforms in any country, region or community. The book is written for experts in water utilities, ministries, municipalities, NGOs, donor agencies, private companies and regulators; as well as students and researchers in water policy and governance, and the management of water resources, services and infrastructure- by Tapio Katko, Petri S. Juuti, and Klaas Schwartz (eds.)

27 Sep 12

Roundtable on Water Security

Sec State Hillary Clinton: “Access to clean water is critical”

Hillary Clinton speaking to the UN Roundtable on Water Security: “Water scarcity could have profound implications for security... I think water should be a priority in every nation’s foreign policy and domestic agenda, and we need to work together to advance cooperation on shared waters.”

03 Sep 12


Eye on Mongolia: Facing the water, sanitation and food security challenge

by Jürgen Hofmann, IGB (Leibniz Institute of Freshwater Ecology and Inland Fisheries), D. Tuul, PSARI (Plant Science and Research Institute, Darkhan), and B. Enkhtuya, AUD (Agricultural Unviersity Darkhan)

31 Aug 12


Nexus in and nexus-driven connections between river basins: Reflection of global nexus changes in large basins

by Janos J. Bogardi, Executive Officer of GWSP

23 Aug 12


Maximising the Benefits: Water, Food and Energy Matrix

by Victor Muyeba and Jackson Mulenga, Devolution Trust Fund, Zambia

13 Aug 12

World Water Week Stockholm 2012

FAO Programme @ Stockholm 2012

This year, the overarching theme of the World Water Week in Stockholm is Water and Food Security. Feeding the world population in the future with limited water resources means that we have to become better at growing more “crops per drop” as well as revisit our thinking regarding how we produce, consume, and trade food from a water perspective all along the food chain. The Food and Agricultural Organisation of the United Nations (FAO) is one of the key collaborating partners for the 2012 water and food security theme, along with the Consultative Group on International Agricultural Research (CGIAR).

23 Jun 12


Business Leaders to Heads of Governments attending Rio+20 Summit: “Make Water Sustainability A Priority!”

As you gather for crucial deliberations on the occasion of the UN Conference on Sustainable Development (“Rio+20 ”), we wish to urge you to take decisive action during and after this Summit on one of our world’s great challenges – water. Water is well recognized as one of the critical sustainability challenges of the 21st century. Problems related to water availability, quality, and sanitation are undermining development in many regions of the world – exacting an enormous human cost while also undermining critical life-giving ecosystems. At the same time, it is important to consider the strong linkages between water-related challenges and other sustainability issues, including energy, arable land and food security. Indeed, water is a profoundly cross-cutting issue. The escalating water crisis is the impetus behind the UN Global Compact’s CEO Water Mandate initiative, launched by UN Secretary-General Ban Ki-moon in July 2007 and today endorsed by nearly 100 major corporations, representing hundreds of billions of dollars in revenue. The endorsers of the CEO Water Mandate are eager to collaborate more actively with Governments at all levels.

21 Jun 12


Water for Life Decade

Water for Life Decade website by UN Water with updated information on Water in Rio+20

19 Jun 12

Messages for Rio

Sustainability is Essential for Development

Interview with Stephan Opitz, Director General of KfW, on the Rio+20 conference and the work of KfW. On the occasion of the UN-conference Rio+20 he explains how Germany’s promotional bank implements this task. KfW promotes sustainable projects and programmes in developing and transition countries in areas such as water supply, food security and energy and is in this way supporting a “green economy” in its partner countries.

13 Jun 12

World Declaration

IHA at al.: Water Storage for Sustainable Development

The global increase in population, both rural and urban, and the socio-economic development with increasing living standards for all, will continuously raise the requirement for water, food and energy consumption. Populations will continue to concentrate in cities where the need for water, food and energy will be most acute. The rapid population growth and socio-economic development means that by 2050: The continuously increasing demands ofwater, food and energy will challenge the natural resources. We need to face this exceptional situation because at the same time.

13 Jun 12


HSBC: Exploring the links between water and economic growth

Population and economic growth are putting pressure on available fresh water resources worldwide. Uncertain water availability is a challenge that many countries face, which can impact economic growth. This ‘water challenge’, and its links to economic growth, has multiple dimensions, one of which is access to safe drinking water and basic sanitation services. Improved access has a direct positive impact on people and communities leading to significant social, economic and environmental benefits. This explains why a Millennium Development Goal (MDG) is “to reduce by half the proportion of people without sustainable access to safe drinking water and basic sanitation by 2015 compared with 1990 levels”. Water resource management at river basins is another key link between water and economic growth. Effective management of freshwater resources helps sustain agriculture, industries, ecosystems and communities. This executive summary focuses on the new findings from the report regarding the links between these two dimensions, and economic growth.

11 Jun 12

Policy Recommendation

Briefing Note “Water for Energy” by the International Chamber of Commerce (ICC)

This paper aims at identifying and recommending best practices and policies from global business to address the water-energy nexus, while outlining potential drivers of innovation.

10 Jun 12


Rio+20 – A Water Guide for Negotiators and Young Water Experts

Water will be a central component of the Rio discussions due to its role in the green economy. Furthermore, water management structures will be part of the discussions at the Summit. A strong unified front from the water community is required to assure that the agreements made at Rio produce positive and lasting results regarding water resources. This guide seeks to introduce the Rio+20 process and facilitate water stakeholders’ participation in the process.

04 Jun 12

Concept Paper

The Water Security Nexus – Challenges and Opportunities for Development Cooperation

Is water the “gold of the 21st century,” potentially triggering “water wars” between countries sharing the precious resource? Such scenarios proliferated in the 1990s, but today a different paradigm is taking root. Politicians are beginning to emphasise the peace dividend of water cooperation; and development agencies are now supporting transboundary water cooperation projects around the world. And even at the highest level of political discourse, water cooperation has been identified as an entry point for broader peacebuilding.

01 Jun 12

In Preparation of Rio+20

Key Messages on Water, Energy and Food to the Norwegian Government for Rio+20

Key messages developed during the seminar “On Food, Water and Energy - in the Context of Rio+20” by participants from Norwegian and international NGO’s during their working groups to the Norwegian Government

01 Jun 12

Fact Sheet

Nile Basin Discourse: Water, Food and Energy Security in A Changing Climate

Climate variability is a problem in the Nile Basin and is increasing. Urgent solutions are needed to address the water-food-climate crisis. Many of the solutions need better cooperation and discussion between the Nile Basin riparian countries.

01 Jun 12

In Preparation of Rio+20

Women’s Major Group Intervention “Food, Water and Energy”

The Women’s Major Group urges for constructive work on food, water, sanitation and energy. Women, youth and indigenous people are affected most by insuffient efforts to improve access and quality of services in these sectors. – by Rosa Lizarde

31 May 12


Prince of Orange: “The nexus should be central in thinking about a viable future for our planet”

Speech of HRH Prince of Orange during in interactive meeting in preparation of Rio on 30 May 2012 in Rotterdam

30 May 12


Power and the Water, Food, Energy Nexus

by Andrew Etzinger, ESKOM, held on the SAWEF Conference in South Africa

30 May 12


Water, Energy, Food Nexus: A Perspective Through Eyes of Water Policy

by Dr. Jerome Delli Priscoli, Institute for Water Resources, US Army Corps of Engineers, Governor World Water Council, Editor in Chief Water Policy, held on the SAWEF Conference in South Africa

29 May 12

Policy Paper

Deliverables by UN-Water

for the Rio+20 United Nations Conference on Sustainable Development

29 May 12


Water in a Green Economy

This statement reflects a collective opinion of the UN-Water Members and comprises recommendations to the participants of the UNCSD 2012 as well as a list of potential actions in support of green economic approaches.

25 Apr 12


Food, Energy and Water – The Meganexus: South Africa at the Stress Epicenter

by Margaret Catley-Carlson, held at the South African Water, Energy and Food Forum: “Managing the Mega-Nexus”, 18-19 April 2012

15 Mar 12


A Water Toolbox – or Best Practice Guide of Actions

A contribution from the UN-Water Conference “Water in the Green Economy in Practice: Towards Rio+20”

14 Mar 12


The Blue Group Declaration to the 6th World Water Forum

“The time for solution is upon us.” The member countries of the Blue Group call upon all stakeholders of the 6th World Water Forum 2012, and the wider international community, to integrate human rights standards and principles when finding solutions to support the aim of universal access to water and sanitation.

03 Mar 12


Dams Initiative

Dams – Blessing or curse? Over 48,000 large dams are in operation worldwide.

03 Mar 12


Water Security – The Water-Energy-Climate Nexus

The book seeks to deepen the awareness and understanding of the nexus which spans across the issue of water and to explore solutions to the water scarcity challenge ahead.

02 Mar 12


Integrating Sanitation, Bio-waste Management, Local Energy Production and Agriculture

by Hamburg University of Technology (TUHH), Germany

02 Mar 12


Durban: Linking Water and Sanitation Provision to Energy Saving and Food Security

by University of KwaZulu-Natal, South Africa, and Bremen Overseas Research and Development Association (BORDA)

16 Nov 11

Water, Energy and Food Security Nexus: Update on the EU Food Security Policy

by Chantal Symoens, EuropeAid

16 Nov 11


Update on EU Water Policy - A Nexus-Perspective for the EU Development Policy

by André Liebaert, European Commission - Presentation at the BONN 2011 NEXUS CONFERENCE

16 Nov 11


Lessons Learnt from Water in the Green Economy in Practice: Towards Rio+20

Presentation by Josefina Maestu, UN Water Decade Program on Advocacy and Communication - Presentation at the BONN 2011 NEXUS CONFERENCE

16 Nov 11


Water in a Green Economy: The UN System’s Position

by Zafar Adeel, Chair of UN-Water - Presentation at the BONN 2011 NEXUS CONFERENCE

01 Nov 11

Press Background

More goods for more people with fewer resources – Can it be done?

Is there a contradiction between providing secure access to water and energy and supplying sufficient food to the world‘s growing population? The answer right now is: in many cases, yes! In many situations throughout the world it is becoming clear that increases in the supply of water or food or energy only come at the expense of one or both of the other resources.

01 Nov 11

Press Background

Networked solutions for an interlinked world

Our world faces enormous challenges. Water, energy and food will become ever scarcer in future, especially in poor countries. Although solutions can be found for many of the impending problems, the measures taken to tackle one problem impact on other sectors – often with negative consequences. Conflicts of objectives arise. Thus, more food or energy has, so far, come at a high cost: rising water consumption. And this is only one example of the contradictory relationships at work.

26 Sep 11

In Preparation of Rio+20

UNSGAB: Water and Sanitation: Underpinning the Pillars of Sustainable Development in the context of a Green Economy

Good management of water and sanitation is a precondition for sustainable development. It underpins the three pillars of sustainable development and also contributes to a green economy and to poverty eradication. These are compelling reasons to address water and sanitation challenges in UNCSD2012. UNSGAB believes that the global community must make progress on three major water and sanitation challenges during UNCSD2012.


21 Aug 15


Water for Development

28 Jul 15


Food and water are tied to one another fundamentally. But in addition to their biophysical relationship, human systems intervene, whether through pricing schemes and trade agreements or shifting patterns in consumption and taste.

10 Jul 15


As momentum builds towards the negotiation of the Sustainable Development Goals and UN climate change summit later this year, the G7 countries have made a strong statement about the importance of climate security risks.

21 May 14

Bonn 2014 Nexus Conference

The Bonn 2014 Nexus Conference that took place 19/20 May 2014 has closed with a call to action by all participants, demand for responsible governance of natural resources, broad involvement of stakeholders, and an expansion of financial, institutional, technical and intellectual resources for nexus research and applications

07 May 14

Bonn 2014 Nexus Conference

The international conference in Bonn on 19/20 May 2014 aims to identify research and funding gaps to influence Nexus policy-making and research on a global level. It will bring together policy makers, scientists and other stakeholders to discuss the linkages across three key resource sectors – water, energy and food. Participants will address the sustainability of the Water-Energy-Food Nexus as a key research-for-action initiative and aim to develop ideas, ways and solutions to inform, influence, and catalyse necessary action by key stakeholder groups such as policymakers, non‐governmental organizations, the private sector, educators, researchers and others.

20 Jan 14

Water-Energy Nexus

In countries around the world, meeting daily energy needs is dependent on water. Finding sufficient water resources to produce the required energy, however, and then appropriately allocating the limited supply, is becoming more difficult.

18 Nov 13

Water-Energy Nexus

This new global initiative is led jointly by the Water and Energy Units in the World Bank and will officially be launched at the World Future Energy Summit in January 2014. thirsty energy aims to support client countries in addressing the challenges in energy and water resources development, avoid unsustainable scenarios and break disciplinary silos that prevent cross-sectoral planning.

22 Oct 13

Nexus Dialogue on Water Infrastructure Solutions

Nexus insights from the IWA Development Congress in Nairobi, Kenya

08 Oct 12

NEXUS and Security

NATO Review Edition on Water, Energy, and Food

27 Jun 12

NEXUS Interview

An interview with Albert Butare, Co-Chair of the Bonn2011 Nexus Conference and NEXUS ambassador

31 May 12

NEXUS Interview

The SEI’s work on the water, energy and food security nexus – an interview with Holger Hoff

08 Mar 12

Conference in Berlin

German foreign minister Guido Westerwelle introduces the results of the Bonn2011 Nexus Conference

16 Jan 12


A new approach – the water, energy and food security nexus

19 Nov 11


Reflections of the Co-Chairs on the outcomes of the Bonn2011 Nexus-Conference

19 Sep 11

Nexus Blog

Sustainable and Productive Sanitation is a Perfect Example of the Water, Energy and Food Security Nexus

Recent NEXUS Events

23–28 Aug 15


Water for Development

17–20 Mar 15


This conference is the second conference organized by the IWA Malaysia Young Water Professionals Chapter via collaborations with the Institute of Environment and Water Resource Management (IPASA), UTM Water Research Alliance, The Malaysian Water Association (MWA) and International Water Association (IWA). It will deal, among other topics, with the water and energy nexus.

06–07 Mar 14


The city of Beira is considered to be heavily hit by climate change. In fact the worst hit city in Africa, therefore it was picked for a project on the effects of climate, land use and urbanization on water resources in the city of Beira took place in the capital of Mozambique, Maputo


Side-event at World Water Day 2014

As a side event of the World Water Day 2014, this event focusses on hydropower. The debate will focus on numerous aspects of the topic: research, management, capacity development and many more

Independent Research Forum

The Millenium Development Goals (MDGs) are to achieved in 2015 which is just ahead.

18–19 Feb 14


This thematic debate is part of a series of three high-level events and three thematic debates convened by the President of the UN General Assembly (UNGA). The events are organized the theme, ‘The Post-2015 Development Agenda: Setting the Stage!’ and seek to initiate discussions on priority areas for the post-2015 development agenda through in-depth, interactive and participatory discussions, with the objective of generating concrete contributions to the formulation of Sustainable Development Goals (SDGs).

22 Mar 14

World Water Day

Water and energy are closely interlinked and interdependent. Energy generation and transmission requires utilization of water resources, particularly for hydroelectric, nuclear, and thermal energy sources. Conversely, about 8% of the global energy generation is used for pumping, treating and transporting water to various consumers.

02–04 Dec 13

Regional Workshop

The workshop will review the progress made so far in designing Nexus project initiatives in participating countries and share experiences and ideas.

04 Nov 13


Greg Allgood, who leads World Vision’s work to address the global water crisis, will highlight the critical link between provision of clean water and effectively addressing major global health priorities including malnutrition and HIV/AIDS.

15 Oct 13

Panel at the IWA Development Congress

Optimising Service Devivery for Universal Access

15–16 Oct 13

Panel at the IWA Development Congress

Climate Services in support of water management decision making.

07–09 May 14


The third edition of the International Forum wants to contribute to a better management of transboundary waters resources whether they are surface waters or groundwaters.

02 Sep 13

Seminar at the World Water Week 2013

In this session, urban & rural stakeholders will share stories of collaboration that highlight the possibilities to bridge divides across agriculture, ecosystems, energy, industry & cities so best management & infrastructure principles are applied for a water secure future.

31 Mar 13

Call for entries

Call for entries for the 2014 Nestlé Prize in Creating Shared Value until 31st March 2013.

29–30 Aug 13


The 1st International Terra Preta Conference aims at bringing experts and interested people from the different sectors – water/sanitation, agriculture, soil, energy, health – together to present their research results and to share their experiences in the field of Terra Preta Sanitation.

25 Oct 12


Achieving inclusive green growth for all is the optimal path to true sustainable development, which combines inclusive economic growth and human development with environmental and social sustainability. But green growth requires water security as an input to human and economic development.

19 Sep 12

Side Event to the UN Human Rights Council

WaterLex, with the sponsorship of the permanent missions of Costa Rica, Ecuador, Germany and Spain, invites to a side event on “The Future of Water in the United Nations System”, Wednesday 19th September, 1-4pm, Room XXIV, Palais des Nations.

30 Aug 12

Seminar at the World Water Week Stockholm

This seminar will analyse how the water-food nexus is being affected by climate change in two of the more important mountain regions of the world: the Andes and the Himalayas. The seminar will review concepts, discuss relevant cases that address different dimensions of the water-food nexus and innovative approaches for dealing with depleting resources, as well as provide guidance to mitigate the impact of the vulnerable water-food nexus in developing regions.

18 Jun 12

Side Event at Rio+20

This side event aims to contribute to the “The Future We Want” outcome document by highlighting the need to better manage mountain natural resources as global public goods supplying water for life, food for health, and clean energy for livelihoods.

14 May–18 Jun 12


The Africa Water Week (aww) is organized by the African Ministers Council on Water (AMCOW) and represents a political commitment at the highest level with over 1000 participants from governments, regional institutions, international partners, the private sector, the scientific community, civil society, and the media from all over the world, and in particular Africa, meeting to discuss and collectively seek solutions to Africa’s water and sanitation challenges.

19 Jun 12

At Rio+20

The Water Day will concentrate on UN-Water contribution to the Rio+20 Conference, building on the UN-Water Statement and on the UN-Water deliverables for Rio+20, and will engage in high-level panel discussions on the relevance of water in the Rio+20 outcomes.

26 Mar 12

Side Event on Rio+20

Mountains have a special role in the water, food, and energy nexus. More than half of humanity relies on freshwater from mountains. Glaciers, ice fields, and snow packs store an immense amount of water and gradually release it to meet year-round needs for irrigation, drinking, sanitation, industrial processing, and clean energy, supporting food security.

12–16 Mar 12

WWF 2012 Marseilles

Programme of the German Pavilion

NEXUS in the Media

24 May 16


Water: An Entry Point for SDG Implementation in Myanmar

All people, economies, and ecosystems depend on water. Yet water is often taken for granted, overused, abused, and poorly managed.

21 Jan 16


Some distance travelled, but a long way to go

The ‘Water for Life Decade’ 2005-2015, proclaimed by the UN General Assembly in 2003, aimed to promote action-oriented activities

10 Sep 15


A Tipping Point for Water

As a sector in world affairs, water is reaching a tipping point.

15 May 15


Without ensuring universal access to water, there can be no food security

A new report on water for food security and nutrition shows how land, food and water issues are inextricably linked. This must be reflected in policymaking

21 Apr 15


Water pricing is a work in progress, says Braga

Water is an undervalued resource, and efforts to accurately price water for all users must be undertaken worldwide. That push, World Water Council Chairman Benedito Braga says, is necessary to combat overconsumption at a time when climate change is making water increasingly scarce.

26 Jan 15

Book Review

Water, food and energy security in the “Urban Millennium”

Competing demands for land, water and energy are already affecting the environment in and around cities, in which more than half of all people live. These demands need effective managment.

23 Oct 14


We Must Think of Security in New Ways

Security is a multi-faceted domain that operates at the nexus of human development and sustainable management of water, energy and food resources.

10 Oct 14

Call for coverage subjects

What next for water and sustainability? - your ideas for our coverage

As The Guardian expand their water coverage and explore just how business, alongside governments and NGOs, will address water challenges - they’d like you to tell them what you’d like them to cover

19 Aug 14


Tanzanian schools urged to teach and practice sustainable development

Schools in Tanzania are being encouraged to become more self-supporting, with projects for better food, water supplies, sanitation and energy usage. There is the hope that the wider community will also benefit.

24 Jun 14

The parched planet: Water on tap

Researchers are exploring unconventional sources of fresh water to quench the globe’s growing thirst.

28 Mar 14


World Water Day: UN highlights water, energy links for sustainable development

In many countries, people have to access to safe drinking water and sanitation, although it is a human right. The lack of water and santitation affects many aspects of life, even education, as this article on several UN reports show

25 Mar 14


Working towards regional water, food and energy security

The water-energy-food security nexus often transgresses regional boarders. In South Africa, however, the nexus affects the wet north and the dry south. Experts use the concept of virtual water to examine this connection

25 Mar 14


Govt taking measures to avoid water crisis in future: Ahsan Iqbal

24 Mar 14


World Water Day 2014 - AfDB’s Support to Avoid Waste and Allow for the Reuse of Water

Africa, especially sub-Saharan Africa, needs more energy for social and economic development. African Development Bank funds dams as well as studies on the dam’s impacts. They aim for a high rate of water reuse in the region

21 Feb 14


The Battle for Water

In this opinion piece the geostrategyst Brahma Chellaney gives background information on why in his opinion water is going to be the next global security and economic challenge. This text is adapted from his book on the issue

20 Feb 14


Tackling water, sanitation, energy nexus key to sustainable future, say UN officials

UN officials are cited here with their views on the nexus approach for water-energy-sanitation. They also take a look at what has or has not been achieved of the Millenium Goals and outline new 2015 goals.

16 Feb 14


The Year That Resilience Gets Real

With the desasters happened in 2013 and the desasters to be expected for 2014, buliding resilience is crucial. Not only for the water-energy-food nexus but also fpr ecosystems and global health systems.

07 Feb 14

Lack of Clean Water, Food and Energy is Affecting the Growth of Developing Countries

Global think tank The Energy and Resources Institute (TERI) launched the 14th edition of its annual flagship event, The ‘Delhi Sustainable Development Summit’ (DSDS) in New Delhi today. The course of three days will witness an array of speakers voicing their opinion on the theme of the conference: “Attaining Energy, Water and Food Security For All”. Sustainable growth and development was stressed by various speakers, especially in the context of developing countries facing a crisis in midst of climate change and scarcity of natural resources.

07 Jan 14


Amazon forest loss risks water security across South America

A new report, Amazonia Security Agenda by Global Canopy Programme and the Internatinal Center for Tropical Agriculture (CIAT), which is summarized here, points out that continued deforestation of the Amazoinian region will cause the unthinkable: Droughts in the Amazonian region, among many other problems

16 Dec 13


Water: a litre saved is a litre earned

Ashwath K. Subramanyan, a 12th grade student who is passionate about water and a Model United Nations delegate for the 4th year, solemn appeals to make the best out of the remaining U.N. Year of Water Cooperation as every liter saved will have a direct impact on those less priviledged than we are and will even save lives

10 Oct 13

Building the case for water SDGs: SEI at the Budapest Water Summit 2013

“The nexus has been discussed and conceptualized at length. It is now time to put the nexus concept to work, so we can help to inspire smart, integrated water, energy and food policies in hotspots where the tensions between water, energy, food and environmental issues are having real impacts on people’s lives,” said Holger Hoff, Senior Research Fellow at the Stockholm Environment Institute (SEI). “This high-level panel will provide a good opportunity to spread the word.”

09 Sep 13

Mesh Rising Energy Demand With World Water Needs, UN Envoy Says

Earth’s energy demands must mesh more seamlessly with the water and sanitation needs of an increasingly water-stressed globe, a United Nations special envoy said today to wrap up Stockholm World Water Week. “Energy and water are two sides of the same coin, the energy technologies are very thirsty,” said Kandeh Yumkella, special representative of the UN secretary-general and the Sustainable Energy for All Initiative chief executive.

03 Sep 13

National Science Week Lecture at University of Kwazulu-Natal

“Combining water, energy and food thinking”

Combining water, energy and food thinking will address some of the shortcomings of the eight single issue millennium development goals set in 2000 for realisation by 2015, says Professor Chris Buckley, Head of UKZN’s Pollution Research Group. Delivering the second of a Public Lecture series celebrating National Science Week at UKZN, Buckley said the nexus between food, water and energy was a hot topic for policy makers around the world. “Integration needs to be emphasised. One needs to think globally, and act locally.”

15 Jan 13

SIWI Encourages Everyone to Join the Thematic Consultation on Water and Energy

“The Thematic Consultation on Water in the post-2015 development agenda is now open, waiting for your inputs on the www.worldwewant2015.org/water website.”

10 Dec 12

IWS 2013: Government Support is the Key to Water Investment and Business Growth, Say Water Experts

Water governance and investment will be key topics addressed at the inaugural International Water Summit (IWS), which will take place on 15-17 January 2013, as a part of Abu Dhabi Sustainability Week. “The sessions we have developed for IWS, including interactive voting sessions, will explore, among other issues, the ways political initiative and water governance can lead to mutually beneficial public-private sector synergies, attract investors and stimulate business development in the water industry,” said Peter McConnell, Show Director for the IWS.

30 Nov 12

UN High-Level Panel Propose New Roadmap for Water, Sanitation

The African Union and the United Nations Secretary General’s Advisory Board on Water and Sanitation (UNSGAB) are convening a High-level African Dialogue on the Water-Food-Energy Nexus in Nairobi, Kenya on November 29, 2012. The High-Level Dialogue brings together representatives from governments, businesses, civil society and academia to discuss a way forward for realizing the nexus in Africa.

20 Sep 12

Countries need “water balance” concerted efforts

Developing countries need a more integrated water management or a “water balance” that should be adhered to by all stakeholders around the world to preserve this very previous but perishable resource, according to Jae So, manager of World Bank Water and Sanitation Program. “A ‘water balance’is a detailed calculation of water demand from agriculture, industry, to household level as well as water supply and resources,” Jae told Xinhua by email before delivering a keynote speech at the IWA World Water Congress in Busan, South Korea. “Developing countries also have to deal with a high rate of non- revenue water or water loss, river pollution and decreasing quality of water resources due to poor sanitation,” Jae said. The high rate of non-revenue water, which in countries such as Indonesia tops 40 percent, affects financial viability of water utilities as well as the quality of water itself.

17 Sep 12

No food without water - Food security despite water scarcity

Agriculture consumes the most water worldwide: the theme of this year’s World Water Week in Stockholm was “Water and Food Security”. Discussions centered on the question of how agricultural production can be increased by 40 to 50 per cent over the next 30 years in order to provide food security for a growing global population - even though there is not more water available. At the conference some 1,500 experts from development policy organisations and from the policy, scientific and civic communities sat together to work on this issue. The laureate of the Stockholm Water Prize, the International Water Management Institute IWMI, put it succinctly by saying “agriculture is thirsty”. Colin Chartres from IWMI underscored that the water requirements in agriculture will double if developments continue at their current pace. Therefore use of the scarce resource water must be optimised and generating additional need should be avoided as far as possible.

14 Sep 12

Why PepsiCo is a Global Leader in Water Stewardship and Sustainable Agriculture

In a wide-ranging interview with Sanjeev Chadha, President, PepsiCo Middle East & Africa, we discussed the evolving relationship between business and society, water management and sustainability at PepsiCo, shortages and scarcity particularly in the Middle East and Africa, the interconnectivity of water with a number of other critical issues, and key leadership lessons learned from a business perspective in tackling some of the world’s most pressing problems.

24 Aug 12

Water Week chief: Better management, governance needed

Droughts, poor land use and water access have all contributed to recent volatility in food prices and regional food emergencies. To address such insecurity in food supplies, good water management and governance – as well as reliable early warning systems – are needed, says Jens Berggren, who heads World Water Week that begins on 26 August in Stockholm.

20 Aug 12

Experts mull global system to monitor water resources

A global system to monitor management of water resources would help governments secure food and water supplies for the future, a U.N. expert due to attend the World Water Week conference later this month has told AlertNet. “There’s demand for a global reporting mechanism that will help us see what is the status of water security and how water is used around the world as a resource, whether in agriculture, industrial production or any other way,” said Joakim Harlin, senior water resources advisor for the United Nations Development Programme (UNDP). The embryonic process - due to be discussed at the water gathering - would set indicators for water-resource management, and build capacity in developing countries so they can collect data, analyse and report on these indicators, he said.

20 Aug 12

ACWUA joins the Middle East and North Africa-Network of Water Centers of Excellence (MENA NWC)

The Arab Countries Water Utilities Association (ACWUA) has been chosen to join the MIDDLE EAST AND NORTH AFRICA-NETWORK OF WATER CENTERS OF EXCELLENCE (MENA NWC) and to lead the water supply and sanitation thematic group. The network aims to link technical institutions across the Middle East and North Africa with each other, with counterpart institutions in the United States and elsewhere, with governments, and with the private sector to solve the critical water problems confronting the region. It was agreed on five Thematic Partnerships that are a focal point for communications and knowledge sharing. Within each Thematic Partnership, priority research areas were identified. The following priority research areas are the basis for the Network’s first Research Teams and submit R&D Grant Applications: 1) Groundwater; 2) Non-Conventional Water; 3) Water/Energy/Food Security Nexus; 4) Water Supply and Sanitation; 5) Water Use Efficiency and Productivity

19 Aug 12

Poo power celebrated as solar toilet wins sanitation prize

Human waste attracts less funding than other development projects but Reinvent the Toilet challenge recognises that better hygiene can cut healthcare costs and prevent early deaths. A solar powered toilet that breaks down water and human waste into hydrogen gas for use in fuel cells has won first prize in a competition for next-generation toilets to improve sanitation in the developing world.

17 Aug 12

WASH Media Award: Six journalists win prestigious media awards geared towards improving reporting on water, sanitation and hygiene

Media in general and journalists in particular are key partners for sanitation, hygiene and water sector professionals in their awareness raising, advocacy and behaviour change work. Journalists play a central role in the highlighting of water and gender related issues and positioning of women as environmental leaders. They greatly contribute to bringing in the spotlight the too often neglected issues of the necessity of toilets and hand washing for a dignified, safe and healthy life for billions of people. The WASH Media Awards, organized by SIWI and WSSCC, two leading sector organizations, take a clear stand that it is not only necessary, but vital.

04 Jul 12

Water flows through heart of sustainability challenges

It is in the interests of big business to work with government to ensure the best use of water in an increasingly water-stressed country.

03 Jul 12

The Vital Link between Energy and Water

The energy-water nexus – the vital link between energy and water – is shaping up to be one of the most important issues of the 21st century. EarthSky spoke with Dr. Michael Webber, associate director of the Center for International Energy and Environmental Policy in the Jackson School of Geosciences. He explained that it takes energy to use water.

27 Jun 12

Sustainable agriculture needs integrated solutions

In its RIO+20 Call-to-action, CGIAR called for “adopting cross-sectoral approaches which facilitate broader partnerships, coordinated regulatory frameworks and appropriate economic incentives. We need the vision and courage to transcend conventional sectoral approaches and apply integrated thinking to the management of agriculture, aquaculture, livestock, forests and water.” AlertNET wanted to find out more, and talked to Stephen Hall (Director General, WorldFish Center), Papa Seck (Director General, Africa Rice Center), Tony Simons (Director General, World Agroforestry Centre), Alain Vidal (Director, Challenge Program on Water and Food – CPWF), Amy Duchelle (Research Fellow, Center for International Forestry Research - CIFOR) and from the International Institute of Tropical Agriculture - IITA), we have Peter Neuenschwander (Scientist Emeritus) and Piet van Asten (Systems Agronomist).

23 Jun 12

Rio+20: Big businesses club together to demand water is given fair value

Forty five influential CEOs commit to lobbying for political change to stave off water crisis – It’s not often that you get 45 of the world’s most powerful CEOs calling on governments to push up the price of a key resource. But this is exactly what happened today when companies ranging from Coca Cola, Nestle, Glaxo SmithKline, Merck and Bayer signed a special communiqué at the Rio+20 conference on sustainable development highlighting the urgency of the global water crisis and calling on governments to step up their efforts and to work more actively with the private sector, civil society and other stakeholders to address it.

23 Jun 12

Should Countries With No Water Be Pushing for Growth?

The water-energy nexus has been coming into focus over the last couple of years. The idea is that water and energy are inextricably linked: it takes water to make energy and energy to clean and move water. In the last year or so, a third critical human resource has been added to the mix: food. Theoretically, we can better and more sustainably manage each of these resources if we understand their impact on each other. This week the water-energy-food nexus hit prime time at Rio+20, with meetings following out from reports at the 2011 World Economic Forum in Davos, Switzerland; a dedicated meeting in Bonn, Germany; and the Sixth World Water Forum in Marseilles, France, in March. These meetings have reached similar conclusions: The water, energy and food security nexus will be one of the major challenges in achieving universal access to these resources without compromising the health and stability of the environment.

17 Jun 12

Rio+20 deal weakens on energy and water pledges

Governments are set to weaken pledges on boosting access to water and energy after a new draft negotiating text was issued at the Rio+20 meeting. The text was issued by the Brazilian host government after it assumed leadership of the talks from the UN. It affirms that nations must not slide back on prior pledges and names ending poverty as the “greatest challenge”.

12 Jun 12

Will Water Dry Up at Summit on Sustainable Development?

he headline in a New York newspaper last March captured the essence of a future potential threat to political stability the world over: “U.S. Report Sees Tensions Over Water.” The study, a collective vision of the U.S. intelligence community, warned that during the next 10 years, many countries important to the United States will “almost certainly experience water problems - shortages, poor water quality or floods - that will contribute to the risk of instability and state failure, and increase regional tensions.”

12 Jun 12

Water-Energy-Food nexus – what is it and how might it be approached at Rio+20?

The Water-energy-food nexus (or other permutations) is increasingly finding itself in the public discourse surrounding development and sustainability. It is a concept that is easy to understand on the face of things, yet like a ball of wool unravels itself into a myriad of complex and dynamic relationships. In fact some have long studied some of the components in detail, such as water use for agriculture and use of crops for bioenergy. And yet despite the fact that these three resources are amongst the most important resources for human survival, the attention they have received as a single interdependent issue has been inadequate. – This is of interest to me in particular because my research is based around the water-energy nexus. Indeed, there is an aspect of food/agriculture in there too, which would be more prominent if the UK aimed to source all of its food from the UK … I digress.

12 Jun 12

Where next for the WEL nexus? Some clues from efforts to integrate in water

Water, energy and land are headline issues in the run-up to Rio+20. The 2012 European Report on Development (ERD), which has its UK launch at DFID on 11 June, and a launch in Berlin on 14 June, puts the knotty problem of increasing scarcity and interconnections between these resources centre-stage: the Water, Energy and Land (WEL) nexus. There are still hopes that outcomes from Rio will bridge between environmental and developmental agendas, for example by agreeing a mandate to set Sustainable Development Goals. Such big ideas will need to be backed up by other radical rethinks in the way we approach our environment, societies and economies.

25 Apr 12

The megatrends companies must face to meet sustainability challenges

Systems thinking comes of age as KPMG says environmental, social and economic problems cannot be solved separately. The megaforces that KPMG highlights represent all the usual suspects, from climate change, unpredictable energy supplies and water scarcity to urbanisation, deforestation and food security.

13 Mar 12

Der Kampf ums Wasser tobt

Die Ressource Wasser ist knapp. Das ist nicht nur ein Problem der Wüstenzonen. Wasser muss gerechter verteilt werden, denn Industriestaaten verschwenden es schonungslos. Deutschland beteiligt sich an der Weltwasserdiskussion seit dem vergangenen Jahr mit der sogenannten Nexus-Diskussion.

13 Mar 12

Water Scarcity Threatens Much of the World, UN Report

Issued every three years since 2003 at the triennial World Water Forum, the UN World Water Development Report offers an overview of the state of the world’s freshwater resources and aims to provide decision makers with the tools to make sustainable use of water a reality.

29 Aug 11

Balancing water, food and energy equation a global challenge

One of the world’s key challenges in an increasingly challenging future will be balancing the water, food and energy equation, WWF predicted at the conclusion of this year’s World Water Week.


  • IFPRI International Food Policy Research Institute
  • WEF World Economic Forum
  • WWF World Wide Fund for Nature

Bonn2011 Nexus Conference – in the context of Bonn Perspectives

  • Bonn Perspectives

initiated by

  • BONN
  • BMZ

funded by

  • European Regional Development Fund EFRE
  • NRW Ministerin fr Bundesangelegenheiten, Europa und Medien des Landes Nordrhein-Westphalen
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