Edexcel GCSE Geography A (1GA0) — The Human Environment
Whenever a new reservoir is proposed, it sparks a fierce debate between those who desperately want the water and those who want to protect the land. Water is a highly contested resource, and managing it requires balancing the needs of different stakeholders. Because each group has completely different socio-economic and environmental priorities, achieving a compromise often leads to a conflict of interest.
The table below compares the differing perspectives, priorities, and values of key stakeholder groups regarding water conservation and usage:
| Stakeholder Group | Core Priority and Values | Common Conflict Points (What they oppose) |
|---|---|---|
| Governments | Prioritise national economic growth, energy security, and meeting urban demand. | Often support large-scale projects, bringing them into conflict with indigenous rights and local environments. |
| NGOs (e.g., WaterAid) | Value social equity, health, and local affordability. | Criticise large dams for causing social displacement and lacking local sustainability. |
| Environmentalists | Value ecosystem health, biodiversity, and maintaining "minimum flow" in rivers. | Oppose water transfers (due to invasive species risks) and dams (which disrupt natural flood cycles). |
| Farmers | Prioritise reliable irrigation to maintain high crop yields and secure their livelihoods. | Clash with urban and industrial users for priority access during droughts. |
| Local Residents |
| Focus on the affordability and reliable supply of domestic water. |
| Conflict with water companies over price hikes and resent restrictions on usage (e.g., hosepipe bans). |
Achieving 100% water independence is a massive challenge for a small island nation that currently ranks 170 out of 190 countries for freshwater access. Singapore aims to achieve this by 2061 using a strategy called the "Four National Taps", representing an advanced approach to sustainable water management.
Their strategy involves expanding the local catchment area from 11% to 67% of the land surface and importing water from Malaysia. Crucially, they also use high-tech solutions: reclaiming grey water (known as NEWater) to meet 40% of demand, and using reverse osmosis for desalination to meet a further 25%.
While highly effective at creating a reliable water supply, this approach has limitations. Desalination is an energy-intensive process, which reduces its environmental sustainability if powered by fossil fuels. Furthermore, the high economic cost of building and maintaining these advanced filtration plants means this strategy is rarely viable outside of wealthy, developed nations.
Imagine walking miles every day just to collect a few litres of unsafe drinking water. To solve this in rural LICs, bottom-up community projects are often favoured over massive engineering schemes. The Hitosa project in Ethiopia is a prime example, using a gravity-fed system to pipe water 140km from Mount Bada springs to over 32 villages.
This scheme uses appropriate technology that requires no energy-intensive pumps and is managed by a local board using small maintenance fees. It provides 25 litres of safe water per person daily for up to 75,000 people, creating a massive social multiplier effect by reducing the time girls spend fetching water, thereby increasing school attendance.
However, while socially and environmentally sustainable, small-scale projects cannot support rapid national economic growth. In contrast, top-down schemes like Ethiopia's Grand Ethiopian Renaissance Dam (GERD) aim to generate 6,000 MW for industrialisation. Yet, such mega-projects often displace communities (the Gilgel Gibe III dam displaced 200,000 indigenous people) and create transboundary political tensions with downstream nations like Egypt.
A truly successful water scheme cannot just solve today's shortage; it must anticipate tomorrow's demand. When evaluating the long-term effectiveness of any scheme, it must be judged against the three pillars of sustainability: economic feasibility, social equity, and environmental impact.
In HICs, large-scale technological solutions like Singapore's NEWater or the UK's Kielder Water (which holds 200 billion litres) offer excellent long-term economic and supply benefits, but often carry high initial financial and environmental costs. Conversely, LIC community projects excel in social sustainability and low environmental impact, but lack the scale to support national industrialisation.
Ultimately, both approaches must overcome the Jevons Paradox. This is the phenomenon where increasing the water supply (through new dams or transfers) simply causes demand to rise to match it, meaning the underlying water deficit is never truly resolved unless demand management (like Las Vegas's "Cash for Grass" scheme) is also enforced.
Students often think "sustainable" only means environmentally friendly. In geography, you must also evaluate economic sustainability (is it affordable?) and social sustainability (does it benefit local people?).
For 8-mark "Evaluate" questions, do not just list the pros and cons of a case study. You must provide a concluding paragraph that makes a balanced judgement on its overall long-term success.
When tackling "Compare" questions about stakeholders, explicitly use contrasting language like "whereas", "conversely", or "on the other hand" to prove you are directly comparing their views, rather than just listing them separately.
Stakeholders
Individuals, groups, or organisations that have an interest in, or are affected by, a particular project or issue.
Conflict of interest
A situation where different groups have opposing priorities or goals, making it difficult to satisfy everyone (e.g., farmers wanting irrigation vs environmentalists wanting river conservation).
Sustainable water management
Balancing current water consumption with available supply to ensure future generations can meet their needs without causing environmental, social, or economic harm.
Grey water
Domestic wastewater from sinks and showers that can be recycled for non-potable uses, such as toilet flushing or agricultural irrigation.
Bottom-up
Small-scale, community-led development projects that involve local people in the decision-making and management process.
Appropriate technology
Low-cost, small-scale technology that is well-suited to the skills, wealth, and maintenance capabilities of the local population.
Top-down
Large-scale, high-cost infrastructure projects (like mega-dams) planned and managed by central governments or large corporations, often with little local consultation.
Jevons Paradox
The concept that as a resource (like water) becomes more abundant due to improved supply strategies, people consume more of it, negating the conservation efforts.
Put your knowledge into practice — try past paper questions for Geography A
Stakeholders
Individuals, groups, or organisations that have an interest in, or are affected by, a particular project or issue.
Conflict of interest
A situation where different groups have opposing priorities or goals, making it difficult to satisfy everyone (e.g., farmers wanting irrigation vs environmentalists wanting river conservation).
Sustainable water management
Balancing current water consumption with available supply to ensure future generations can meet their needs without causing environmental, social, or economic harm.
Grey water
Domestic wastewater from sinks and showers that can be recycled for non-potable uses, such as toilet flushing or agricultural irrigation.
Bottom-up
Small-scale, community-led development projects that involve local people in the decision-making and management process.
Appropriate technology
Low-cost, small-scale technology that is well-suited to the skills, wealth, and maintenance capabilities of the local population.
Top-down
Large-scale, high-cost infrastructure projects (like mega-dams) planned and managed by central governments or large corporations, often with little local consultation.
Jevons Paradox
The concept that as a resource (like water) becomes more abundant due to improved supply strategies, people consume more of it, negating the conservation efforts.
