Nexus thinking creates the possibility to explore issues on a global scale. The process in which resources are allocated can influence the power a nation has on the global arena. The nexus needs to view human needs at various scales to become an inclusive process.
To be able to summarize the water-food-energy nexus approach.
To be able to describe and explain water security, food security and energy security.
Nexus
Define the term above by using the 'Useful Link' below.
Before we look at how interrelated the different elements of the nexus are we need to understand why being resource secure is such an important issue. We are going to watch the three YouTube clips below and I would like you to make notes on why each country needs to have the three resources of food, water and energy. You can bullet point these notes but do remember to add data when it is explicitly mentioned.
The Data:
Agriculture accounts for 72% of all freshwater withdrawals
Producing one person's daily food takes 2,000 to 5,000 litres of water
Global water demand is projected to rise 20 to 30% by 2050
Over 864 million people faced severe food insecurity in 2023
The concept of the nexus is something that is being raised throughout politics, but should it be a political issue?
Now read the article in the 'Useful Resource' box and suggest why the nexus is a political issue.
We are now going to view the impact of politics on the nexus from various countries perspectives.
Choose one to focus on from the resources below.
Outline what the issue is and what it was caused by.
How is the nexus impacted by politics? Use your example to explain briefly - approximately 4-5 sentences.
This dam was inaugrated in September 2025 and is the continent of Africa's largest hydroelectric dam. While Ethiopia gains energy security, Egypt is potentially facing water and food food security as a result of the build.
Mongabay News - Ethiopia's Renaissance mega-dam fuels energy hopes and regional anxiety
This happened in 2025 and puts Pakistan's irrigation and hydropower at risk of collapse.
Penn State - Why a key India-Pakistan water treaty is under strain, and why it matters globally.
We are now going to work on the nexus by completing a cut and stick exercise. We are initially going to watch the clip in the 'Useful Resources' box to find out how to do the activity. Then in case you forget how to do it the instructions stage by stage are below. Thank you www.geographypods.com for this lesson and to www.geographyalltheway.com for the Swiss alterations.
Watch the clip in the 'Useful Resources' box to find out what the activity is and how it is going to work.
The group will be divided into teams of approximately four people.
Collect a pair of scissors each and three glue sticks per group.
Collect a piece of flip chart paper.
Collect the first set of cards - the 'Traditional' views.
Cut them out.
Sort them into groups of your choice. They could be food, water, energy, climate change etc.
As a whole class we will discuss your grouping choices.
Spread your group choices out and see where they can link by tessellating them.
Collect the second set of cards.
Either add these cards to those you have already sorted or you can start again.
Spread your group choices out and see where they can link by tessellating them.
Now add the SDGs to your choices. Do any of them fit or link to your groups?
Stick your hexagons on to your flip chart paper.
Image Three - Students at work taken by Ellena Mart
Now you have looked at the importance of the nexus and a detailed example of the politics of the nexus, create a chain for that examples using the card sort in the last activity. For example:
Explain two reasons why the food-water-energy nexus is important. [2+2]