ESS IA Topic Ideas + Examples [2026 updated]

Have you got your ESS IA deadline approaching soon and are unsure what to choose as your topic? Do not worry, this post is here to help you through that process! In this text, we will provide you with numerous ESS IA ideas with examples to help you start the writing process. Our goal is to guide you in meeting the IB criteria and ensure you stay on track throughout your IA writing process. No matter what aspect of ESS you are interested in, the suggestions below are sure to have something that suits your needs!

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Environmental impact

Pollution & waste management

Climate change & natural hazards

Socio-economic factors

Biodiversity

ESS IA Ideas

1. The effect of salinization: In this topic, you could examine the impact of soil salinization on crop growth and development, highlighting its potential consequences for global food security.

    

2. Tourism and biodiversity: Looking at this topic, you could investigate how unsustainable tourism affects populations of local species. 

    

3. Human development and biodiversity: In this exploration, you could look at how proximity to human settlements impacts biodiversity. 

    

4. The impact of CO₂ emissions: In this topic, you could explore the extent to which CO₂ emissions have influenced variations in average temperatures in a specific region, while also taking into account the broader environmental effects. 

    

5. Awareness of plastic overuse: In this topic, you could explore how awareness of the harmful effects of excessive plastic use varies across different age groups, highlighting differences in knowledge, attitudes, and environmental concerns.

    

6. Impact of accessibility on waste management: In this topic, you could explore how access to waste management facilities affects waste segregation and disposal practices

    

7. Effects of plastic fumes on plant growth: In this topic, you could explore how fumes from different types of plastics influence the growth of plants, comparing the impacts of non-degradable and biodegradable plastics.

    

8. Environmental awareness: In this topic, you could investigate how various groups of people and societies influence the varying levels of environmental awareness. 

    

9. Disposal of medication: Looking at this topic, you could investigate how household income influences the level of awareness, in terms of knowledge and practice, on the way people dispose of unused medication. 

    

10. Heavy metals in soil: Through this analysis, you could investigate how proximity to roads impacts the heavy metal concentrations found in soils in a country.

     

11. Climate change and gender: Within this topic, you could explore the extent to which gender can affect a person’s view of the existence of climate and the threat it poses to humanity.

     

12. Environmental value systems: In this exploration, you could look at how the age of a person affects their environmental value system.

     

13. Rising sea levels: Through this analysis, you could explore how rising sea levels due to climate change could affect local animal populations.

     

14. Water quality: Looking at this topic, you could investigate how distance from a major tourist hotspot affects the water quality levels in nearby bodies of water. 

     

15. Effects of urbanization: In this exploration, you could look at the extent to which rapid urbanization in a city has affected pH, dissolved oxygen content, and concentration of nitrates in nearby natural lakes.

     

16. Waste generation: Through this topic, you could look at the extent to which socio-economic factors affect the generation of waste in a city.

     

17. Disposal of food waste: Within this analysis, you could explore how the age of a person could impact the frequency and environmental impact of food waste disposal methods used. 

     

18. Cattle production: In this topic, you could look at the impact of cattle farming in a rainforest region and the loss of tree cover over a period of time.

     

19. Water pollution: Looking at this topic, you could analyze how the pH and hence water pollution levels change as the distance from which samples are collected gets further from urban centres. 

     

20. Income and environmental awareness: Through this topic, you could look at how different levels of income among residents of a city affect their awareness of the effects of using detergent on water pollution.

     

     

     

21. Fertility rates: In this exploration, you could investigate the relationship between GDP per capita and total fertility rates within a country.

     

22. Impacts of human activity: Within this analysis, you could explore the impacts of the intensity of human activity and land use on plant biodiversity across different uses of land in a city. 

     

23. Refugees and HDI: Looking at this topic, you could investigate the relationship between the Human Development Index and the number of internally displaced climate refugees in a country. 

     

24. Plant growth in acid rain: Through this analysis, you could explore how the pH of acid rain could affect the growth of plants, by measuring the height that the plant grows in a certain period of time when exposed to different levels of acidity.

     

25. Tobacco and seed germination: Looking at this topic, you could investigate how the number of cigarettes in tobacco water affects the germination of tomato seeds.

     

26. GDP and carbon emissions: Through this analysis, you could explore how a country's annual GDP can affect its carbon emission levels. 

     

27. Dissolved oxygen content: In this exploration, you can investigate how different levels of water salinity affect the dissolved oxygen content in a sample of water. 

     

28. Intensive grazing: Through this topic, you could study the effects of intensive grazing on soil productivity in a region. 

     

29. Spread of diseases: Within this analysis, you could look at the extent of correlation between a country's population density and the rate at which diseases spread throughout the country.

     

30. Level of eutrophication: Looking at this topic, you could determine the most eutrophic lagoon in a country by measuring the net growth of plants irrigated with water from different eutrophic sources.