Sharing knowledge on the Water-Energy-Food (WEF) Nexus
Our mission is to foster a paradigm shift in the international development agenda, from sectoral development interventions towards an integrated resource-use approach by sharing the knowledge on the Nexus approach.
The Nexus Resource Platform is the leading global knowledge hub for managing and sharing resources on the Water, Energy and Food Nexus. It enables practitioners, researchers and policymakers to think beyond sectors to ensure access to water, energy and food for all.
How are the water, food, and energy sectors connected?
The world is currently facing a challenge of securing water, energy, and food for all: scarce natural resources and the environment are increasingly exploited while at the same time the demand for freshwater, agricultural products and energy is rising. Inequalities in the distribution and access to water, energy and food are exacerbated by the impacts of climate change.
Water
By 2050, global water demand will increase by 55% due to a combination of rising global population and economic growth. By then, half of the world’s population will live in areas under water stress.
Over the period to 2040, the amount of energy used in the water sector is projected to more than double.
Irrigation is the largest volumetric producer of wastewater.
Energy
Global power generation is forecasted to increase by almost 60% in the next ten years.
90% of global power generation is water intensive.
Roughly 2,500 litres of water are required to produce 1 litre of liquid biofuel.
Food
By 2050 global food production would need to increase by 60% to meet the food requirements of a growing global population.
70% of global water usage is consumed by agriculture and 30% of global energy consumption is used for food production and supply.
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69%
of agriculture uses the major share (69%) of global freshwater resources
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30%
of global energy consumption is used for food production and supply
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90%
of global power generation is water-intensive
More than one-quarter of the energy used globally is needed for food production and supply and the agricultural sector is the largest user of the world’s freshwater resources. At the same time, water scarcity already affects 2.1 billion people.
Sectoral planning in the water, energy and agricultural sectors can lead to unintended, negative consequences, which in turn worsens livelihoods and undermines sustainable development. Today's resource governance is insufficiently steered towards achieving a balanced water, food and energy security for humankind.
Single-mindedly pursuing individual goals may interfere with other sectors!
For example:
Increasing electricity production
- More abstraction of water for cooling
- Less water for other sectors and the environment
- Less water security
Intensifying agricultural production
- More land used for growing food
- Competition over land resources (eg. biofuels vs. crops as food)
- More use of fertilisers
- Contamination of water resources
- Less water security downstream
Need for a systematic WEF Nexus approach!
What is the WEF Nexus approach?
The WEF Nexus approach is based on an understanding of the synergies and trade-offs between competing uses of water, land, and energy-related resources. The WEF Nexus approach connects stakeholders coming from different sectors in order to improve resource use and sustainable development.
The WEF Nexus approach is a central pillar of the Agenda 2030 and an enabler for reaching the Sustainable Development Goals!
Key Resources
The WEF Nexus approach is a fundamental shift from a pure sectoral approach to solutions that embrace a cross-sectoral, coherent, and integrated perspective. It challenges existing structures, policies and procedures at global, regional and national levels.
Key benefits of the WEF Nexus approach:
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Reducing sectoral trade-offs
Avoid or limit negative externalities
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Enhancing resource efficiency
Solutions designed to address multiple challenges simultaneously
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Political benefits
Encreased Political legitimacy, political stability
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Leverage synergies towards overarching development goals
The WEF Nexus approach in practice
The Nexus Resource Platform is managed by GIZ as part of the Nexus Regional Dialogues Programme. Our goal is to institutionalise the WEF Nexus approach in national and regional governance structures and investment decisions and to engage the public and private investors for WEF Nexus projects. We are active in five different regions.
Meet our Team
Through the Nexus Resource Platform, you can further your understanding of the WEF Nexus approach and its implementation around the world.