Introduction
Food production is a critical theme in IB Environmental Systems and Societies (ESS). For the 2026 first assessment, the syllabus emphasizes how different food production systems reflect cultural, economic, and environmental choices. This topic challenges students to think about sustainability, comparing systems across the globe and evaluating their impacts on people and ecosystems.
Food production systems in ESS are not just about agriculture. They also include fisheries, aquaculture, and pastoral systems. Mastering this area means being able to compare approaches, use case studies, and critically evaluate sustainability.
Quick Start Checklist for ESS Students
When revising food production systems, make sure you can:
- Identify types of food production systems (subsistence, commercial, intensive, extensive, pastoral, aquaculture).
- Compare systems using inputs, outputs, and impacts.
- Use case studies from different parts of the world.
- Explain how food production links to soil, water, and energy use.
- Evaluate sustainability in terms of ecological footprints.
Types of Food Production Systems in ESS
1. Subsistence Farming
- Definition: small-scale, producing food mainly for family or local consumption.
- Characteristics: low technology, high labor, low inputs of fertilizer or pesticides.
- Example: shifting cultivation in tropical rainforests.
- Advantages: culturally adapted, low ecological footprint.
- vulnerable to climate variation, low yields.
