Band 8.0 IELTS Writing Task 2 Model Answer

Overall Band Score: 8.0 · Cambridge IELTS 17 · 2026-08-20

IELTS Writing Task 2 question

Some people say that the main environmental problem of our time is the loss of particular species of plants and animals. Others say that there are more important environmental problems.

Discuss both these views and give your own opinion.

Give reasons for your answer and include any relevant examples from your own knowledge or experience.

Student answer (Band 8.0)

Some people argue that the disappearance of particular species of plants and animals is the most serious environmental problem facing the world today, whereas others believe that issues such as climate change, pollution and deforestation are more pressing. Although these problems are closely interconnected, I consider biodiversity loss to be the most fundamental because the stability of human life ultimately depends on healthy and functioning ecosystems.

The extinction of species can have consequences far beyond the loss of individual plants or animals. Every species performs a particular role within an ecosystem, and removing one can disrupt food chains and ecological relationships. For example, the disappearance of pollinating insects can reduce the reproduction of many crops, while the loss of predators can cause certain animal populations to grow uncontrollably. Over time, such disruptions can weaken ecosystems and reduce their ability to provide essential services, including food production, clean water and fertile soil. Consequently, widespread biodiversity loss could threaten not only wildlife but also human food security and livelihoods.

Nevertheless, it is understandable why climate change and other environmental problems are considered more important. Global warming, for instance, is already causing rising temperatures, extreme weather events, melting ice and changes in rainfall patterns. Similarly, pollution can contaminate air, water and soil, directly affecting both humans and other living organisms. However, these problems should not be viewed in isolation. Climate change, deforestation and pollution are themselves major causes of habitat destruction and species extinction. At the same time, the loss of forests and other natural ecosystems reduces the planet's capacity to absorb carbon dioxide and regulate the climate. Therefore, biodiversity loss can both result from and intensify other environmental problems.

In conclusion, while climate change, pollution and habitat destruction undoubtedly pose severe threats, I believe that the loss of plant and animal species is the most fundamental environmental concern. Protecting biodiversity should therefore be a central part of global environmental policy, as healthy ecosystems are indispensable to the long-term survival and prosperity of humanity.

AI examiner evaluation

Task Achievement / Task Response — Band 8.0

The response fully addresses all parts of the prompt. You have clearly discussed both views—the importance of biodiversity loss versus other environmental issues like climate change—and provided a well-reasoned personal opinion. The position is consistent throughout the essay. Ideas are well-developed, particularly in the second paragraph where you explain the ecological consequences of species loss with specific examples like pollinating insects and predators. The third paragraph effectively balances the counter-argument by acknowledging the interconnectedness of environmental threats. The response is comprehensive and demonstrates a high level of critical thinking, meeting all requirements of the task.

Coherence and Cohesion — Band 8.0

The essay is logically organized with a clear progression of ideas. Each paragraph has a central theme, and the transition between the discussion of biodiversity and the counter-argument regarding climate change is smooth. You use a variety of cohesive devices effectively, such as 'consequently,' 'nevertheless,' and 'at the same time,' which help guide the reader through your argument. Paragraphing is used appropriately to separate distinct points. The flow of information is natural, and the relationship between ideas is always clear, which is characteristic of a high-level response.

Lexical Resource — Band 8.0

You demonstrate a wide and sophisticated range of vocabulary. The use of terms such as 'interconnected,' 'disrupt food chains,' 'indispensable,' and 'prosperity' shows a high level of lexical control. The vocabulary is precise and fits the academic context perfectly. There are no noticeable errors in word choice or collocation. You successfully use less common items to convey complex ideas, which contributes to the overall clarity and professional tone of the essay. The language is natural and demonstrates a strong command of English vocabulary.

Grammatical Range and Accuracy — Band 8.0

The essay displays a wide range of grammatical structures, including complex sentences with subordinate clauses and conditional-like logic. The majority of sentences are error-free, and the punctuation is used accurately to enhance readability. You demonstrate excellent control over verb tenses and subject-verb agreement. The structure is varied, moving between simple, compound, and complex sentences with ease. There are no significant grammatical errors, and the writing is consistently accurate, reflecting a high level of proficiency.

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