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Quiz yourself on Resource Management OverviewGet your flashcardsBuild my revision planTrack my progress⛓️ Why the FEW Nexus Makes Single-Resource Solutions Dangerous
Because food, energy, and water are so interconnected, policies designed to solve one resource problem can inadvertently create or worsen another. This is why the nexus concept is so important — and why high-mark exam answers always demonstrate awareness of these linkages.
Policy: Expand biofuel production to reduce fossil fuel dependence → Grow more crops for ethanol (corn, soya, palm oil)
Effect on food: Land previously used for food crops converted to biofuel crops → Reduced food supply → Higher global food prices → Food insecurity in low-income countries worsens
Effect on water: Biofuel crops require irrigation → Higher agricultural water demand → Increased pressure on already-stressed water systems
Result: A policy aimed at reducing one resource pressure (fossil fuels) simultaneously worsened two others (food security, water stress) — a classic nexus unintended consequence
Policy: Build large hydroelectric dams to provide clean energy (e.g. Three Gorges Dam, China; Grand Renaissance Dam, Ethiopia)
Effect on water: Dam reservoir stores water upstream; less water flows downstream → Reduced flow to downstream farmers and communities; potential disruption to river ecosystems
Effect on food: Downstream farmers lose irrigation water → Lower agricultural yields → Food insecurity in affected communities increases
International tension: Ethiopia's Grand Renaissance Dam on the Nile has caused major diplomatic conflict with Egypt and Sudan, who depend on the Nile for 90–95% of their water
Result: Clean energy generation for one country creates water and food insecurity for others — demonstrating that resource management always has winners and losers
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