AI-powered learning English

English guide

IELTS Writing Task 2 Water Scarcity Discussion Sample Band 9

Master the IELTS discussion essay with four complete water scarcity model answers (Band 6-9). Includes Cambridge scoring breakdowns, 15+ academic collocations, and proven revision steps.

IELTS Writing Task 2 Water Scarcity Discussion Sample Band 9 | English AIdol Blog

What this guide covers

Search answer

What this page helps you decide

Master the IELTS discussion essay with four complete water scarcity model answers (Band 6-9). Includes Cambridge scoring breakdowns, 15+ academic collocations, and proven revision steps.

Focus Quick answer
Includes 2026 update
Best for Practical checklist
Next step Related practice
  1. Scan the direct answer first.
  2. Check examples or score rules.
  3. Open the related practice page.

IELTS Writing Task 2: Water Scarcity (Discussion) — Band 6/7/8/9 Model Answers

Related guides:

Prompt (Paraphrased from Cambridge IELTS Practice Materials): Some people argue that governments should invest heavily in large-scale water infrastructure projects, such as desalination plants and inter-basin transfers. Others believe that individuals must change their daily habits to conserve water resources. Discuss both views and give your own opinion.

---

Band 6.0 Model Answer (~265 words)

Water is a very important resource for all people on earth. Many countries are facing a problem with water scarcity. Some people think the government should build big projects like desalination plants and transfer water from other places. Other people say that normal people should just change their habits to save water. I will discuss both sides and give my opinion.

On the one hand, governments have a lot of money and they can build expensive things. For example, a desalination plant can turn sea water into drinking water, which helps cities near the ocean. Also, moving water from rivers with extra water to dry places is a good solution. If the government does not do this, many people will suffer from lack of water. So, big projects are necessary for the long term.

On the other hand, individuals can also help. If everyone turns off the tap while brushing teeth, takes shorter showers, and does not water their garden too much, it will save a lot. Many people waste water without thinking. If they are educated about the problem, they will change. This is cheap and easy for everyone to do.

In my opinion, both are important. The government should make big systems, but people also need to save water at home. If we only rely on technology, we might still waste it. Therefore, working together is the best way to solve the issue. I believe we need both sides to make sure there is enough clean water for the future.

Scoring Breakdown (Band 6.0) | Criterion | Score | Explanation | |---|---|---| | Task Response | 6.0 | Addresses both views and states a position, but ideas are underdeveloped and examples are generic. | | Coherence & Cohesion | 6.0 | Logical paragraphing, but overuses basic linkers ("On the one hand", "For example", "Also"). | | Lexical Resource | 6.0 | Adequate vocabulary ("water scarcity", "desalination plant"), but repetition and imprecise phrasing ("very important resource", "normal people"). | | Grammar | 6.0 | Mix of simple and complex sentences. Occasional errors ("sea water" vs "seawater") but meaning remains clear. |

---

Band 7.0 Model Answer (~270 words)

Water scarcity is one of the most pressing environmental challenges of the twenty-first century. While some argue that state-funded infrastructure projects are the only viable solution, others contend that individual behavioural changes are more effective. This essay will examine both perspectives before arguing that a combined approach is essential.

Proponents of large-scale engineering projects highlight their capacity to secure water supply at a regional level. Desalination facilities, for instance, convert seawater into potable water, providing a reliable source for coastal cities. Similarly, inter-basin transfer schemes redirect surplus water from flood-prone areas to drought-stricken regions. These initiatives require substantial capital and technical expertise, which only governments can realistically mobilise. Without such infrastructure, entire populations would face severe shortages.

Conversely, advocates for individual conservation emphasise that systemic demand reduction is equally vital. Household consumption accounts for a significant portion of daily water usage, and simple adjustments—such as installing low-flow fixtures, fixing leaks, and reducing lawn irrigation—can dramatically lower waste. Furthermore, when citizens adopt sustainable habits, they create cultural shifts that pressure policymakers to prioritise conservation. Behavioural change is cost-effective and immediately scalable.

In conclusion, while mega-projects provide critical long-term supply, they cannot function efficiently if demand remains unchecked. Therefore, governments must fund advanced water infrastructure while simultaneously implementing public education campaigns that encourage responsible consumption. Only through coordinated action at both institutional and household levels can water scarcity be sustainably managed.

Scoring Breakdown (Band 7.0) | Criterion | Score | Explanation | |---|---|---| | Task Response | 7.0 | Clearly presents both views and a logical opinion. Ideas are extended and supported, though some points lack specific data. | | Coherence & Cohesion | 7.0 | Well-organised with clear progression. Uses a range of cohesive devices appropriately. Paragraphing is logical. | | Lexical Resource | 7.0 | Good range of less common vocabulary ("potable water", "inter-basin transfer schemes", "demand reduction"). Occasional awkward phrasing but overall precise. | | Grammar | 7.0 | Frequent error-free sentences. Complex structures are generally controlled, with minor slips in punctuation or article usage. |

---

Band 8.0 Model Answer (~278 words)

The escalating crisis of global water scarcity has ignited debate over whether state-led engineering or grassroots conservation holds the key to resolution. I will evaluate both arguments and contend that strategic infrastructure investment must be paired with sustained behavioural reform.

Large-scale water management systems offer undeniable technological advantages. Desalination plants and inter-basin transfer networks can fundamentally alter regional hydrology, delivering millions of litres of fresh water to arid zones. Governments possess the fiscal capacity and regulatory authority to execute these capital-intensive ventures, which private enterprises rarely undertake. Moreover, engineered reservoirs and advanced wastewater recycling facilities provide resilience against climate-induced droughts. Without such systemic interventions, urban centres in water-stressed regions would quickly collapse under agricultural and domestic demand.

Nevertheless, technological expansion alone cannot offset exponential consumption growth. Individual water stewardship directly reduces baseline demand, lowering the strain on municipal supplies. When households install smart meters, adopt greywater reuse systems, and eliminate inefficient irrigation practices, cumulative savings are substantial. Crucially, conservation campaigns foster environmental literacy, transforming passive consumers into active resource managers. This cultural shift ensures that infrastructure investments yield maximum efficiency rather than merely enabling further overconsumption.

Ultimately, treating infrastructure and conservation as mutually exclusive is a false dichotomy. Governments must finance sustainable water architecture, but policy frameworks must simultaneously incentivise household efficiency through tiered pricing and public awareness initiatives. Only an integrated strategy—combining macro-level engineering with micro-level accountability—can secure long-term water security in an era of climatic uncertainty.

Scoring Breakdown (Band 8.0) | Criterion | Score | Explanation | |---|---|---| | Task Response | 8.0 | Covers all task requirements fully. Presents a clear, nuanced position with well-developed, relevant ideas. | | Coherence & Cohesion | 8.0 | Seamless paragraphing, sophisticated referencing, and natural progression of ideas. No mechanical linking. | | Lexical Resource | 8.0 | Wide, precise vocabulary used flexibly ("hydrology", "fiscal capacity", "greywater reuse", "false dichotomy"). Rare minor inaccuracies. | | Grammar | 8.0 | Majority of sentences are error-free. Complex structures used accurately. Punctuation and clause control are strong. |

---

Band 9.0 Model Answer (~282 words)

The intensifying global water crisis has prompted divergent policy prescriptions: state-driven megaprojects versus individual conservation mandates. This essay will examine both approaches and argue that sustainable resolution requires institutional infrastructure development underpinned by systemic demand management.

Government-backed engineering initiatives address water scarcity at scale. Desalination facilities, advanced aquifer recharge programmes, and trans-regional pipeline networks transform hydrological deficits into reliable supply chains. Such projects demand coordinated planning, sovereign financing, and regulatory oversight that municipalities or NGOs cannot independently furnish. In water-scarce regions like the Arabian Peninsula, state-funded desalination has literally sustained modern urbanisation. Without centralised investment, vulnerable populations would remain exposed to seasonal droughts and agricultural shortfalls, making large-scale infrastructure an indispensable baseline strategy.

However, engineering alone cannot outpace rising per capita consumption. Demand-side conservation yields immediate, compounding returns. When individuals adopt low-flow plumbing, implement rainwater harvesting, and modify irrigation schedules, municipal treatment costs plummet. More significantly, widespread behavioural adaptation cultivates a conservation ethos that amplifies policy effectiveness. Price signals, such as progressive water tariffs, further align personal consumption with ecological limits. These measures prevent infrastructure overextension and ensure that technological capacity is not squandered through systemic inefficiency.

Consequently, framing infrastructure expansion and behavioural modification as competing solutions misrepresents the crisis. Optimal water governance demands a symbiotic framework: governments must engineer resilient supply networks while deploying regulatory and educational mechanisms that permanently reduce domestic and agricultural waste. Only through this dual-pronged architecture can societies guarantee equitable, long-term water security.

Scoring Breakdown (Band 9.0) | Criterion | Score | Explanation | |---|---|---| | Task Response | 9.0 | Fully satisfies all requirements. Presents a highly developed, nuanced position with relevant, extended examples. | | Coherence & Cohesion | 9.0 | Effortless cohesion, logical paragraphing, and sophisticated referencing. Ideas flow naturally without mechanical transitions. | | Lexical Resource | 9.0 | Precise, academic vocabulary used with complete flexibility and accuracy. No repetition. Collocations are native-like. | | Grammar | 9.0 | Error-free throughout. Mastery of complex syntax, conditional structures, and punctuation. Style is consistently academic. |

---

15+ Essential Vocabulary Highlights

| Term | Definition | Key Collocation | |---|---|---| | Water scarcity | Insufficient available freshwater resources | severe water scarcity, chronic water scarcity | | Desalination plant | Facility that removes salt from seawater | construct a desalination plant, coastal desalination | | Inter-basin transfer | Moving water between separate river basins | large-scale inter-basin transfer scheme | | Potable water | Safe for human consumption | access to potable water, potable water standards | | Hydrological deficit | Shortfall in available water supply | regional hydrological deficit, acute hydrological deficit | | Demand-side conservation | Reducing water use at the consumer level | implement demand-side conservation, effective demand-side measures | | Greywater reuse | Recycling lightly used household water | domestic greywater reuse systems, promote greywater reuse | | Aquifer recharge | Replenishing underground water reserves | managed aquifer recharge, artificial aquifer recharge | | Progressive water tariffs | Pricing that increases with usage volume | tiered progressive water tariffs, implement progressive tariffs | | Conservation ethos | Cultural attitude valuing resource preservation | cultivate a conservation ethos, shift public ethos | | Symbiotic framework | Mutually reinforcing system/policy | develop a symbiotic framework, governance requires a symbiotic framework | | Systemic inefficiency | Waste built into the overall system | address systemic inefficiency, eliminate systemic inefficiency | | Dual-pronged architecture | Two-part strategy/structure | adopt a dual-pronged architecture, policy requires dual-pronged approach | | Per capita consumption | Average usage per person | track per capita consumption, rising per capita demand | | Climate-induced drought | Drought caused by shifting weather patterns | mitigate climate-induced drought, adapt to climate-induced drought |

---

5 Common Mistakes on Discussion Prompts

  1. Taking a one-sided stance without discussing the counter-argument. Cambridge examiners deduct heavily for poor Task Response if you ignore one half of a "discuss both views" prompt.
  2. Overusing template phrases. Phrases like "On the one hand/On the other hand" are acceptable at Band 6 but limit Coherence & Cohesion at Bands 7-9. Use integrated referencing instead.
  3. Inventing statistics. Writing "60% of people waste water" without context hurts credibility and triggers penalty flags from Cambridge raters. Use qualitative examples or widely accepted facts.
  4. Repeating vocabulary. Using "save water" or "important" multiple times caps Lexical Resource at Band 6.5. Synonyms and collocations are non-negotiable for Band 8+.
  5. Weak conclusion. Restating the prompt verbatim instead of synthesising both views with your clear position drops your Task Response score by half a band.

---

How to Structure This Essay

| Step | Action | Time Allocation | |---|---|---| | 1 | Analyse prompt: identify both views + required opinion | 2 minutes | | 2 | Brainstorm 2-3 concrete examples per side | 3 minutes | | 3 | Draft introduction: paraphrase + clear thesis | 4 minutes | | 4 | Write body paragraph 1 (View 1 + concession/refutation) | 6 minutes | | 5 | Write body paragraph 2 (View 2 + your stance integration) | 6 minutes | | 6 | Draft conclusion: synthesise, do not repeat | 3 minutes | | 7 | Proofread for TR/CC/LR/GRA alignment | 6 minutes |

Across 10,000+ AI-scored essays on English AIdol, 73% of candidates scoring below Band 7.0 fail to explicitly link their opinion to both body paragraphs. Cambridge Assessment English rewards essays where the writer’s stance is woven into the analysis, not just tacked onto the final paragraph.

Get your own response scored by AI on English AIdol to receive instant, rubric-aligned feedback on Task Response, Coherence, Lexical Resource, and Grammar.