What do sustainability and liveability mean, and how are they measured?
Define sustainability and liveability and explain how each is measured and how they relate
A focused answer to the WACE Year 12 Geography focus on sustainability and liveability. Covers the three pillars of sustainability, liveability indicators, how the two concepts overlap and tension, and real examples.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
SCSA wants you to define both concepts precisely, explain how each is measured, and analyse where they reinforce one another and where they conflict. A strong answer treats sustainability and liveability as distinct but related ideas and supports each with measures and named examples.
Defining sustainability
Sustainability is most often defined through the idea of meeting present needs without compromising future generations, an idea popularised by the 1987 Brundtland report. Geographers usually break it into three interdependent pillars.
- Environmental: protecting ecosystems, biodiversity, water, air and climate, and living within ecological limits.
- Economic: maintaining prosperity, employment and growth over the long term.
- Social: ensuring equity, wellbeing, health and access to services for present and future people.
A genuinely sustainable place balances all three; a decision that boosts the economy while wrecking the environment is not sustainable.
Measuring sustainability
Sustainability is measured with indicators that capture long-term and environmental factors.
- Ecological footprint: the area of productive land and sea needed to support a population's consumption and absorb its waste, often expressed in global hectares per person.
- Carbon emissions per capita and renewable-energy share.
- The UN Sustainable Development Goals (SDGs): 17 goals tracking environmental, economic and social progress.
- Resource use, water quality, biodiversity and waste-recycling rates.
Defining liveability
Liveability is how well a place meets the needs and preferences of the people who live there, now. It is more about present quality of life than the long-term future. Common dimensions include:
- Stability and safety (low crime, political stability).
- Healthcare access and quality.
- Education access and quality.
- Infrastructure and services (transport, utilities, housing).
- Environment and culture (climate, green space, recreation, amenity).
Measuring liveability
Liveability is measured by composite indexes and surveys.
- The Economist Intelligence Unit Global Liveability Index ranks cities on stability, healthcare, culture and environment, education and infrastructure. Melbourne, Vienna and other cities have regularly ranked near the top.
- The Mercer Quality of Living survey ranks cities for expatriate living conditions.
- Local indicators such as walkability, access to public transport, housing affordability and green-space provision.
How sustainability and liveability relate
The two concepts overlap but are not identical. A place can be highly liveable yet unsustainable, and improving one can sometimes worsen the other.
- Overlap: green space, good public transport, clean air and walkable neighbourhoods improve both liveability now and sustainability for the future.
- Tension: a sprawling, car-dependent city can score well on space and housing comfort (liveability) while having a large ecological footprint (poor sustainability). Densifying a city to make it more sustainable can reduce some residents' amenity in the short term.
A balanced answer keeps the two ideas distinct, shows where they align and where they conflict, and uses measures from both.