What you'll need to know...
How pressure on resources affects the future security of places
The water–food–energy “nexus” and how its complex interactions affect:
• national water security, including access to safe water
• national food security, including food availability
• national energy security, including energy pathways and geopolitical issues
The implications of global climate change for the water–food–energy nexus
• Detailed examples of two countries with contrasting levels of resource security
The disposal and recycling of consumer items, including international flows of waste
Synthesis, evaluation and skills opportunities
How perspectives on, and priorities for, national resource security vary between places and at different scales
The water–food–energy “nexus” and how its complex interactions affect:
• national water security, including access to safe water
• national food security, including food availability
• national energy security, including energy pathways and geopolitical issues
The implications of global climate change for the water–food–energy nexus
• Detailed examples of two countries with contrasting levels of resource security
The disposal and recycling of consumer items, including international flows of waste
Synthesis, evaluation and skills opportunities
How perspectives on, and priorities for, national resource security vary between places and at different scales
The Food - Water - Energy Nexus (FEW) ... What is it?

The video tutorial for this lesson is available here. A PDF version of the lesson plan is available from the IB DP Geography site or by clicking here.
"Trade-offs between energy and water, or between energy and food, are increasingly being debated in terms of the 'nexus' – a buzzword which has risen in prominence over the past few years as a way of thinking about interconnections between food, water, energy and the environment. These systems are inextricably linked, and integrated approaches are required, which move beyond sectoral, policy and disciplinary silos" - James Wilsdon and Rose Cairns June 2014
Task - We are going to use solo hexagons to critically examine the complexities between the Nexus of water, food, energy and climate change. To to this the following resources are important.
Step 1 - The Preparation
Split your teaching group into pairs or groups of three. Explain to the students that they are going to be completing a hexagon activity and that there is no right or wrong answer. The key thing is the discussion that goes with the activity and making as many links between as many global issues as possible.
Step 2 - The Traditional Approach
Step 3 - The Nexus Approach & Critical Thinking
Now distribute 'Hexagon Card Set 2' and now ask the students to complete their diagrams. This may involve completely starting over again with their hexagon structure in order to incorporate this new nexus approach. Note that some of these cards are specific to issues in the area surrounding the International School of Toulouse, but can be adapted to suit your school area.
Step 4 - The final display
Step 5 - Links with the SDG's
Step 6 - Exam Corner
“Water, food and energy security can no longer be viewed as isolated global problems” – critically examine this statement (10)
"Trade-offs between energy and water, or between energy and food, are increasingly being debated in terms of the 'nexus' – a buzzword which has risen in prominence over the past few years as a way of thinking about interconnections between food, water, energy and the environment. These systems are inextricably linked, and integrated approaches are required, which move beyond sectoral, policy and disciplinary silos" - James Wilsdon and Rose Cairns June 2014
Task - We are going to use solo hexagons to critically examine the complexities between the Nexus of water, food, energy and climate change. To to this the following resources are important.
Step 1 - The Preparation
- Ensure that students have a pair of scissors each, a glue stick and A2 sized sugar paper for the final display.
- Four sets of cards should be available to the students (see above card sets)
- An interactive whiteboard (useful but not essential)
Split your teaching group into pairs or groups of three. Explain to the students that they are going to be completing a hexagon activity and that there is no right or wrong answer. The key thing is the discussion that goes with the activity and making as many links between as many global issues as possible.
Step 2 - The Traditional Approach
- Distribute 'Hexagon Card Set 1' (above right) and ask students to sort out the statements first into groupings and then to start making links between the groups. Possible groupings:
- 1. What is nexus? 2. Past trends 3. Future trends (may include rise of the middle class otherwise this could be a category in its own right) 4. Climate change 5. Water 6. Food 7. Energy 8. Other info
- If you have an interactive whiteboard, you may want to click on the link to 'Set 1 - Interactive' and use this to ask the students to show their results visually at the end of this step.
- The students may add any additional hexagon cards by writing them on the blanks provided and adding to their diagram
- Prompt discussion about the 'traditional' viewpoint of these global issues and how these groups of issues that have been tackled independently. Do they simply have small sub-groups of hexagons separate from each other?
Step 3 - The Nexus Approach & Critical Thinking
Now distribute 'Hexagon Card Set 2' and now ask the students to complete their diagrams. This may involve completely starting over again with their hexagon structure in order to incorporate this new nexus approach. Note that some of these cards are specific to issues in the area surrounding the International School of Toulouse, but can be adapted to suit your school area.
- Students can be given a chance to add their own cards to the diagram and there should be plenty of discussion of how they have come to the formation on their display card.
- A possible ordering can be seen by clicking on the link for 'Set 2 - Interactive'
Step 4 - The final display
- The students would then be given time to organize their cards (paper versions) onto display card.
Step 5 - Links with the SDG's
- A plenary would include a final pack of hexagons each with the logo of the 17 SDG’s where students have to fit them into the diagram as extensions to the hubs and nodes that they already have glued down.
Step 6 - Exam Corner
- The sequence of the hexagons diagram could then be further examined by using a hexagons Venn Diagram and ultimately used in conjunction with the IB essay planner to formulate a response to the following Paper 2 - 10 mark homework question
“Water, food and energy security can no longer be viewed as isolated global problems” – critically examine this statement (10)
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The FEW Nexus in Summary...
You are going to be completing three brief summary sheets that show how the Nexus complex interactions affect:
• national water security, including access to safe water
• national food security, including food availability
• national energy security, including energy pathways and geopolitical issues
Your starting point is to read this summary article from United Nations Water - here.
Split into groups of three. Each person in the group is focus on one of the areas below. Your job is to research your interactions and produce a presentation to give to your partner on the issue as well as a completed exam question (3+3) as follows:
1. Discuss how Nexus interactions affect national water security and access to safe water.
2. Evaluate how Nexus interactions affect national food security and food availability.
3. Explain how Nexus interactions affect national energy security and geopolitical issues.
You must include one global 'case study' example in your presentation and exam response.
• national water security, including access to safe water
• national food security, including food availability
• national energy security, including energy pathways and geopolitical issues
Your starting point is to read this summary article from United Nations Water - here.
Split into groups of three. Each person in the group is focus on one of the areas below. Your job is to research your interactions and produce a presentation to give to your partner on the issue as well as a completed exam question (3+3) as follows:
1. Discuss how Nexus interactions affect national water security and access to safe water.
2. Evaluate how Nexus interactions affect national food security and food availability.
3. Explain how Nexus interactions affect national energy security and geopolitical issues.
You must include one global 'case study' example in your presentation and exam response.
For this task, you will be visiting the rather excellent geographyalltheway site. Your case study will be a comparison of Switzerland and the United Arab Emirates and there contrasing levels of food, energy and water security. Click here to access the relevant page and use the worksheet beneath to record your information. Once your data and information gathering is complete, please write your response to the exam question at the foot of the page.
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Impacts of Climate Change on the FEW Nexus...
This is an independent research task and would best suit a homework type approach. Download and print out the sheet below in A3 size and use the information contained within the WWF Fact Sheet to help you extract the key issues of the effects of Climate Change on the FEW Nexus.
The disposal and recycling of consumer items, including international flows of waste...
Part 1 - e-waste
Part 2 - recycling
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Task. You should work in pairs on this task. One student should focus on the impacts of e-waste on affected communities and the other on the current crisis in many HICs caused by a banning of the importation of certain plastic waste products by the Chinese government.
You should complete your work as a 4 segment grid using the 4P's as your focus. Place, Process, Power, Possibility. Ensure that you use flow maps, charts as well as data that explains why this flow has grown (environmental legislation etc) as well as future trends.