Triple Threat: Water, Energy and Food Insecurity

The document examines the critical interdependencies between water, energy, and food security, illustrating how failures in one sector trigger crises in others. Using case studies from India, Zimbabwe, Cambodia, and Pakistan, it demonstrates how climate-driven droughts and poor governance exacerbate resource scarcity and political instability. The author advocates for a systemic shift in international aid, moving away from siloed management toward a nexus approach based on three pillars: enhanced knowledge through data, strengthened institutional governance, and cross-sectoral regional cooperation.

• The 'water-energy-food nexus' describes how these resources are interconnected, meaning a crisis in one can devastate the others; for example, in India, drought-induced water scarcity halted thermal power plants due to a lack of cooling water, resulting in electricity losses equivalent to the annual power needs of Sri Lanka.
• Climate change is increasing the frequency and severity of droughts globally, with a projected increase in the amount of rainfed cropland facing extremely high seasonal variability risk by 2040, which is expected to more than quadruple compared to 2010 levels.
• Water stress is a growing global threat, with 17 countries currently facing extremely high water stress; this number is predicted to rise to 33 countries by 2040.
• In Zimbabwe, severe drought has led to the Kariba Dam falling to 10% capacity by the end of 2019, causing power shortages because the country generates over half its electricity from hydropower and leaving one-third of the population struggling with food insecurity.
• Cambodia faces an acute food and energy crisis driven by a combination of severe drought and upstream hydropower dams, which have collapsed fisheries and disrupted the production of water-intensive staples like rice.
• Pakistan's water security is undermined by an inefficient irrigation system that loses over half its water, contributing to the Indus River Basin aquifer becoming the second most depleted in the world.
• Solving one resource issue in isolation can inadvertently jeopardize another; for instance, providing solar panels to farmers for groundwater pumping can increase food yields but may lead to the depletion of groundwater supplies if there is no mechanism to prevent over-pumping.

APA

Walker, S. (2020). Triple Threat: Water, Energy and Food Insecurity. World Resources Institute. https://www.wri.org/insights/triple-threat-water-energy-and-food-insecurity

Chicago

Walker, Sara. Triple Threat: Water, Energy and Food Insecurity. World Resources Institute, 2020. https://www.wri.org/insights/triple-threat-water-energy-and-food-insecurity.

Wikipedia

{{cite report |last1=Walker |first1=Sara |title=Triple Threat: Water, Energy and Food Insecurity |publisher=World Resources Institute |date=19 October 2020 |url=https://www.wri.org/insights/triple-threat-water-energy-and-food-insecurity |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{walker2020triple, author = {Walker, Sara}, title = {{Triple Threat: Water, Energy and Food Insecurity}}, institution = {World Resources Institute}, year = {2020}, month = oct, url = {https://www.wri.org/insights/triple-threat-water-energy-and-food-insecurity}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }