Future Earth Water-Energy-Food Nexus
Delivering water, energy and food for all in a sustainable and equitable way is one of the major challenges faced by our societies. Future Earth will support this goal by providing the knowledge needed to understand how interactions between water, energy and food are shaped by environmental, economic, social and political changes and how the synergies and trade-offs among them can be better planned and managed.
Interactions between water, energy and food systems are manifold (see Figure). Energy is required to process and distribute water, water is central for nearly all forms of energy production, and both energy and water are key to any food enterprise. These interactions intensify as the demand for resources increases with population growth and the move towards ever more resource-intensive lifestyles. By 2050, according to most of the baseline scenarios, the demand for energy will nearly double while water and food demand is expected to increase by over 50%. These dynamics are combined with major trends such as climate and land use change, and the depletion of natural resources, which already limit the ability of existing systems to meet growing demands. Integrated resource management for food, energy and water is required to face, as well as to curb, these trends that already threatens food, water and/or energy security and sustainable development in many places of the world.
In addition, a significant part of the global population still lacks access to electricity (1.2 billion people in 2013 according to the World Energy Outlook 2015), clean and safe water (783 million people in 2014 according to AQUASTAT) and food (842 million undernourished people in 2012 according to FAO). Thus, solutions towards an improved and integrated resource management for water, energy and food will also need to overcome this access deficit.
The Knowledge-Action Network on the Water-Energy-Food Nexus is a collaborative initiative of the Core Projects of Future Earth, the Future Earth Cluster Activity on Sustainability for water, energy and food through integrated water information and improved governance and CCAFS (the CGIAR Research Program on Climate Change, Agriculture and Food Security).
Source: International Renewable Energy Agency, 2015: Renewable Energy in the Water, Energy & Food Nexus