Water-Energy-Food for Policymakers: What does it mean?

The briefing argues that traditional, siloed approaches to water, energy, and food security are unsustainable and can lead to unintended consequences. It advocates for the 'Water-Energy-Food (WEF) nexus' approach, which recognizes the critical interconnections between these three essentials. The International Institute for Sustainable Development (IISD) applies this framework through watershed-based management in Canada—specifically using cattail harvesting in the Lake Winnipeg watershed to provide bioenergy and reduce phosphorus—and by engaging stakeholders in Suriname to assess the impacts of mining on WEF systems using both outcome-based and process-based indicators.

• Traditional policies and investments that focus on only one element of water, energy, or food security often overlook the critical relationships between them, which can lead to unsustainable outcomes such as groundwater depletion, climate change, and nutrient loading in waterways.
• In the Lake Winnipeg watershed, IISD uses the harvesting of cattail (Typha) as a sustainable bioenergy source to produce ethanol, biochar, syngas, and condensed biomass. This process removes 10 to 40 kilograms of phosphorus per hectare, combating algal blooms in the lake, while the recovered phosphorus from ash can be used as agricultural fertilizer.
• In Suriname, IISD's work on mining development demonstrates that WEF monitoring requires two types of indicators: outcome-based indicators to measure physical and socio-economic changes (such as water quality and energy sources) and process-based indicators to track the integration of actions, such as the level of stakeholder involvement in decision-making.

APA

International Institute for Sustainable Development (n.d.). Water-Energy-Food for Policymakers: What does it mean? https://www.iisd.org/system/files/publications/water_energy_food_policymakers_what_does_it_mean.pdf

Chicago

International Institute for Sustainable Development. Water-Energy-Food for Policymakers: What does it mean? n.d. https://www.iisd.org/system/files/publications/water_energy_food_policymakers_what_does_it_mean.pdf.

Wikipedia

{{cite report |author=International Institute for Sustainable Development |title=Water-Energy-Food for Policymakers: What does it mean? |url=https://www.iisd.org/system/files/publications/water_energy_food_policymakers_what_does_it_mean.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{internationalinstituteforsustainabledevelopmentndwaterenergyfood, author = {{International Institute for Sustainable Development}}, title = {{Water-Energy-Food for Policymakers: What does it mean?}}, institution = {International Institute for Sustainable Development}, url = {https://www.iisd.org/system/files/publications/water_energy_food_policymakers_what_does_it_mean.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }