GeographyCBSE Class 12 · Planning and Sustainable Development in Indian Context

Concept of Sustainable Development (Class 12 Geography, India: People and Economy, Chapter 6)

Updated 16 October 2026 · Fact-checked

Development is a multi-dimensional, positive and irreversible transformation of economy, society and environment. After the Second World War it meant economic growth; by the 1980s it meant better social and material well-being of all. Sustainable development, defined by the Brundtland Report of 1987, meets present needs without compromising future generations.

Notice that sustainable development sits only where all three aspects overlap, meeting present needs without harming future generations (Brundtland, 1987).

Illustration drawn for QuestionBuddy.

Understand Concept of Sustainable Development

Why this topic matters. The syllabus lists the concept of sustainable development in Chapter 6. Learn the stages of the idea, the key names and dates, and how to test a project against the three aspects: ecological, social and economic.

1. What is development?

The term describes the state of particular societies and the process of change they experience.
For most of history, the state of societies was set by interaction between human societies and their bio-physical environment, which depends on the level of technology and institutions. Technology and institutions speed up the interaction; the momentum then accelerates technological progress and the creation of institutions.
So development is multi-dimensional and signifies the positive, irreversible transformation of the economy, society and environment.

2. Stages in the idea (second half of the twentieth century).

After World War II: development was synonymous with economic growth, measured by temporal increase in gross national product (GNP) and per capita income or consumption.
Even countries with high growth saw a speedy rise in poverty because of unequal distribution. So in the 1970s phrases such as redistribution with growth and growth and equity entered the definition.
Dealing with equity showed that development cannot be restricted to the economic sphere: it also includes well-being and living standards, health, education, equality of opportunity, political and civil rights.
By the 1980s development was a concept covering widespread improvement in social as well as material well-being of all in a society. The concept is dynamic.

3. Rise of sustainable development.

Emerged from rising awareness of environmental issues in the late 1960s in the Western World, reflecting concern about undesirable effects of industrial development on the environment.
The Population Bomb (Ehrlich, 1968) and The Limits to Growth (Meadows and others, 1972) raised fears further.
The United Nations set up the World Commission on Environment and Development (WCED), headed by Norway's Prime Minister Gro Harlem Brundtland. Its report, Our Common Future (1987), the Brundtland Report, defines sustainable development as "development that meets the needs of the present without compromising the ability of future generations to meet their own needs."
It takes care of ecological, social and economic aspects of development in the present and pleads for conservation of resources so future generations can use them. It considers the development of the whole of humankind, which has a common future.

4. Linking with other chapters. Chapter 4 and 5 conservation (watershed development, rainwater harvesting, recycling of scrap metals, substitutes, non-conventional energy, restriction on export of scarce minerals) are applications of sustainable development; so are the cautions in the Indira Gandhi Canal and Ralegan Siddhi cases.

5. Planning context. Planning here means the process of economic development; sectoral and regional planning, target area programmes and the two case studies are separate topics in the same chapter.

Graph checklist. Draw a timeline: post-war growth, 1960s environmental awareness, 1968, 1970s equity, 1972, 1980s well-being, 1987.

Key quotations

Short lines worth knowing by heart: who says them, when, and why they matter.

Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
Brundtland Report (Our Common Future, 1987), as quoted in NCERT, India: People and Economy, Chapter 6: NCERT's definition of sustainable development.
The definition to quote word for word.

Concept of Sustainable Development: key facts

Timeline of ideas: Post-WWII growth (GNP, per capita income)
1968 The Population Bomb
1970s growth and equity
1972 The Limits to Growth
1980s well-being of all
1987 Our Common Future; Dates as given by NCERT.
Three aspects: $E co l o g i c a l ∣ S oc ia l ∣ E co n o mi c$; Sustainable development takes care of all three.
Development defined: Multi-dimensional: positive, irreversible transformation of economy, society and environment; Depends on technology and institutions.
Brundtland Commission: WCED (UN)
Gro Harlem Brundtland, Norwegian Prime Minister
Report: Our Common Future
1987; First definition of sustainable development in NCERT.

Post-WWII	growth (GNP, per capita income)
1968	The Population Bomb
1970s	growth and equity
1972	The Limits to Growth
1980s	well-being of all
1987	Our Common Future

How to answer Concept of Sustainable Development questions

Answers on this topic are built from three blocks: how the idea of development changed, why sustainable development arose, and what its definition says. Add dates and names to every block.

1Start with development as multi-dimensional change shaped by technology and institutions.
2Give the stages in order: growth, growth with equity, well-being of all, sustainable development.
3Name the triggers: late 1960s awareness, The Population Bomb (1968), The Limits to Growth (1972).
4Quote the Brundtland definition and name the three aspects.
5For application questions, test a project against ecological, social and economic aspects and future generations.

Concept of Sustainable Development in real life

The idea, met in an everyday situation. Answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Eating the seed grain

Suppose a farm family, hit by hard times, eats the seed grain kept for sowing. They feed themselves this year but will have nothing to sow next season.

How does this mirror what sustainable development warns against?

Try it first, then show the solutionSolution

Sustainable development meets the needs of the present.
But it must not compromise the ability of future generations to meet their own needs.

Answer: The family meets today's need by destroying tomorrow's, which is exactly what the Brundtland definition says development must not do.

Memory hook: Do not eat the seed.

Growth without equity

Suppose a country's total income doubles in twenty years but nearly all of the gain goes to a few families, while the number of poor people grows.

Which stage of the idea of development does NCERT link to this experience?

Try it first, then show the solutionSolution

Even countries with high economic growth experienced speedy rise in poverty because of its unequal distribution.
So in the 1970s the phrases redistribution with growth and growth and equity were incorporated into the definition.

Answer: It led to the 1970s phrases redistribution with growth and growth and equity, widening development beyond growth alone.

Memory hook: Big pie, unequal slices.

Tricks to remember Concept of Sustainable Development

Short memory aids. Say each one aloud once, then use it on a question the same day.

68-72-87
Population Bomb 1968; Limits to Growth 1972; Our Common Future 1987.
Use it when: Dates of the sustainable development story.
GNP, equity, well-being, sustainability
Four steps of the idea of development.
Use it when: Stages.
E-S-E
Ecological, Social, Economic: the three aspects.
Use it when: Aspects of sustainable development.
Do not eat the seed
Present needs yes; future needs also.
Use it when: Meaning of the Brundtland definition.

Concept of Sustainable Development: solved examples

Ordered from board level to HOTS. Try each one before you open the solution.

Example 1: The Limits to Growth · 1 mark · MCQBoard level

'The Limits to Growth', which raised the level of fear among environmentalists, was published by Meadows and others in:
(A) 1968
(B) 1972
(C) 1980
(D) 1987

Try it first, then show the solutionSolution

NCERT: The Population Bomb by Ehrlich was published in 1968 and The Limits to Growth by Meadows and others in 1972; the Brundtland Report is 1987 (1 mark).

Answer: (B) 1972

Example 2: Chronological order · 1 mark · MCQHarder board level

Arrange in correct time order:
(i) The Limits to Growth
(ii) Our Common Future (Brundtland Report)
(iii) The Population Bomb
(A) (iii), (i), (ii)
(B) (i), (iii), (ii)
(C) (ii), (iii), (i)
(D) (iii), (ii), (i)

Try it first, then show the solutionSolution

The Population Bomb 1968, The Limits to Growth 1972, Our Common Future 1987 (1 mark).

Answer: (A) (iii), (i), (ii)

Example 3: Assertion and reason on poverty and growth · 1 mark · Assertion-reasonHarder board level

Assertion (A): In the 1970s the definition of development was widened by phrases such as 'redistribution with growth' and 'growth and equity'.
Reason (R): Even countries with high economic growth experienced a speedy rise in poverty because of its unequal distribution.
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(C) (A) is true but (R) is false.
(D) (A) is false but (R) is true.

Try it first, then show the solutionSolution

NCERT states both facts and links them: because growth did not stop the rise of poverty, equity entered the definition.
R explains A (1 mark).

Answer: (A) Both (A) and (R) are true and (R) is the correct explanation of (A).

Example 4: Source-based: what development means · 3 marks · Source-basedHarder board level

Read the passage: "The state of the societies has largely been determined by the interaction processes between human societies and their bio-physical environment. The processes of human-environment interaction depend upon the level of technology and institutions nurtured by a society. While the technology and institutions have helped in increasing the pace of human-environment interaction, the momentum thus generated in return has accelerated technological progress and transformation and creation of institutions. Hence, development is a multi-dimensional concept and signifies the positive, irreversible transformation of the economy, society and environment."
(i) Development is described as: (1)
(A) a one-dimensional concept (B) a multi-dimensional concept (C) only economic growth (D) a reversible process
(ii) Human-environment interaction depends upon: (1)
(A) the level of technology and institutions (B) latitude alone (C) population density alone (D) size of a country
(iii) Development signifies transformation of: (1)
(A) economy only (B) economy, society and environment (C) environment only (D) society only

Try it first, then show the solutionSolution

(i) Multi-dimensional, so (B) (1 mark).
(ii) Level of technology and institutions, so (A) (1 mark).
(iii) Economy, society and environment, so (B) (1 mark).

Answer: (i) B; (ii) A; (iii) B

Example 5: From environmental fear to a world commission · 3 marks · Short answerBoard level

What raised environmental concern in the late 1960s and early 1970s, and how did the United Nations respond? (3 marks)

Try it first, then show the solutionSolution

In the late 1960s the Western World became aware of environmental issues, out of concern over the undesirable effects of industrial development on the environment (1 mark).
The Population Bomb by Ehrlich (1968) and The Limits to Growth by Meadows and others (1972) further raised the level of fear among environmentalists and people in general (1 mark).
The United Nations established the World Commission on Environment and Development (WCED), headed by the Norwegian Prime Minister Gro Harlem Brundtland; its report Our Common Future (1987) defined sustainable development (1 mark).

Answer: General awareness of environmental issues grew in the Western World in the late 1960s because of the undesirable effects of industrial development on the environment. Ehrlich's The Population Bomb (1968) and The Limits to Growth by Meadows and others (1972) raised the level of fear further. The United Nations responded by setting up the World Commission on Environment and Development, headed by Norway's Prime Minister Gro Harlem Brundtland, whose 1987 report, Our Common Future, gave the definition of sustainable development.

Example 6: HOTS: testing a village project for sustainability · 5 marks · Long answerHOTS / competency

A village completes a watershed project like Ralegan Siddhi: water is adequate and farming flourishes, but fertiliser and pesticide use is very high, and doubts exist about continuing the work after its leader. A town also proposes a plant that turns municipal waste into energy, like the one at Okhla. Using the three aspects of sustainable development, assess both. (5 marks)

Try it first, then show the solutionSolution

Ecological: watershed work recharges water and restrains water-hungry crops, but heavy fertiliser and pesticide use counts against it (1 mark).
Social: voluntary labour, reforms and self-reliance support the social aspect; dependence on one leader endangers continuity (1 mark).
Economic: adequate water and flourishing agriculture raise income (1 mark).
Waste-to-energy: processes waste, produces energy, reduces environmental pollution, improves rural economic life, reduces pressure on fuel wood (1 mark).
Conclusion: both support future generations only if ecological caution and continuity are secured (1 mark).

Answer: Ralegan Siddhi meets the ecological aspect in part: its percolation tank, ban on open grazing and ban on water-intensive sugarcane conserve water, but very high use of fertilisers and pesticides works against the environment. Socially it is strong: voluntary labour, ban on liquor, removal of caste discrimination, consensus elections and self-reliance; but NCERT asks whether the present generation can carry on after the leader. Economically, adequate water and flourishing agriculture raised livelihoods.

A waste-to-energy plant such as Okhla in Delhi treats waste and garbage and produces energy, which reduces environmental pollution and, in NCERT's wording for bio-energy, enhances self-reliance, improves economic life of rural areas and reduces pressure on fuel wood.

Both projects serve the present, but only if the village limits chemical use and builds institutions that outlast one person, and the town manages waste responsibly, can they be called sustainable for future generations.

Where students lose marks in Concept of Sustainable Development

The slips examiners see most often, and what to write instead.

Mistake: Quoting the Brundtland definition without the future-generations clause
The first half sounds complete.
Wrong working
Sustainable development is development that meets the needs of the present.
Right working
Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
Do this: Always include 'without compromising'.
Usually costs: 1 mark.
Mistake: Wrong dates
Three similar dates.
Wrong working
The Limits to Growth, 1968; Population Bomb, 1972.
Right working
The Population Bomb 1968; The Limits to Growth 1972; Our Common Future 1987.
Do this: 68, 72, 87.
Usually costs: 1 mark.
Mistake: Equating development with growth
Older notes treat them as the same.
Wrong working
Development means rise in GNP.
Right working
Rise in GNP was the post-war view; by the 1980s development meant widespread improvement in social and material well-being.
Do this: Say 'earlier view' and 'later view'.
Usually costs: 1 mark.
Mistake: Naming only environmental concern in sustainable development
The word 'environment' dominates.
Wrong working
Sustainable development means protecting the environment.
Right working
It takes care of ecological, social and economic aspects and of future generations.
Do this: Write all three aspects.
Usually costs: 1 mark.

Exam tips

Write the Brundtland definition in full and name the three aspects in the next line.
Use the stages in time order with one date each; this is how a 5-mark evolution answer is marked.
When applying the concept to a project, comment on each of the three aspects and on future generations.
The questions on this page are our own and are checked by meaning against the chapter page; they are not copies of past board items.

Practice questions on Concept of Sustainable Development

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

Q1 · 1 mark · MCQBoard level
In the post-World War II era, the concept of development was synonymous with:
(A) economic growth, measured by increase in GNP and per capita income
(B) conservation of resources
(C) human rights alone
(D) redistribution of land
Hint
Think GNP.
Answer
(A) economic growth, measured by increase in GNP and per capita income.
Q2 · 2 marks · Very short answerHarder board level
Find the number of years between The Population Bomb (1968) and The Limits to Growth (1972), and between The Limits to Growth and the Brundtland Report (1987). (2 marks)
Hint
Subtract.
Answer
1972 - 1968 = 4 years; 1987 - 1972 = 15 years.
Q3 · 1 mark · MCQBoard level
By the 1980s, the concept of development had emerged as one encapsulating:
(A) a rise in industrial output only
(B) widespread improvement in social as well as material well-being of all in a society
(C) rise in per capita consumption alone
(D) removal of the Planning Commission
Hint
Well-being of all.
Answer
(B) widespread improvement in social as well as material well-being of all in a society.
Q4 · 3 marks · Short answerHarder board level
Distinguish between the post-World War II idea of development and the idea that emerged by the 1980s, giving the indicators in each. (3 marks)
Hint
GNP and per capita income against health, education and rights.
Answer
After World War II development meant economic growth, measured by temporal increase in gross national product and per capita income or consumption. By the 1980s development was seen to include improving the well-being and living standard of people, availing of health, education and equality of opportunity, and ensuring political and civil rights, that is, widespread improvement in social as well as material well-being of all in a society.
Q5 · 3 marks · Short answerHarder board level
Classify each as mainly ecological, social or economic: (a) recharging groundwater by rainwater harvesting, (b) a rise in female literacy in a tribal area, (c) a rise in farm income through assured irrigation. Name the idea that requires all three together. (3 marks)
Hint
Three aspects of sustainable development.
Answer
(a) Ecological, since it conserves and recharges a natural resource. (b) Social, since it improves well-being and equality. (c) Economic, since it raises income. Sustainable development takes care of ecological, social and economic aspects together.
Q6 · 3 marks · Short answerHOTS / competency
A state must meet rising demand for electricity. Plan X builds new coal-based thermal power stations; Plan Y builds solar and wind power. Evaluate the two plans using the Brundtland definition of sustainable development and NCERT's account of energy resources. (3 marks)
Hint
Exhaustible against inexhaustible; present against future needs.
Answer
Both plans meet the present need for power. Plan X depends on coal, which NCERT treats as a conventional, exhaustible source: using it up quickly reduces what future generations can use, which goes against meeting present needs "without compromising the ability of future generations to meet their own needs". Plan Y uses solar and wind energy, which NCERT calls inexhaustible alternative sources that should be developed to replace exhaustible resources. So Plan Y fits sustainable development better; Plan X can be justified only as a stop-gap while the alternatives are built up.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1.Who wrote The Population Bomb and when?Show answer
Ehrlich, in 1968.
2.Who wrote The Limits to Growth and when?Show answer
Meadows and others, in 1972.
3.What was the title of the WCED report?Show answer
Our Common Future (1987).
4.Who headed the World Commission on Environment and Development?Show answer
Gro Harlem Brundtland, the Norwegian Prime Minister.
5.Name two things the concept of development includes beyond economic growth.Show answer
Any two of well-being and living standard, health, education, equality of opportunity, and political and civil rights.

Concept of Sustainable Development: frequently asked questions

What are the three aspects of sustainable development?

Ecological, social and economic.

Is sustainable development only about protecting the environment?

No. NCERT says it takes care of the ecological, social and economic aspects of development in the present, and pleads for conservation of resources so that future generations can use them.

Is the concept of sustainable development in the 2026-27 syllabus?

Yes. Chapter 6 lists planning, target area planning (Hill Area Development Programme, Drought Prone Area Programme), the concept of sustainable development and two case studies.

Do the target area programmes and case studies belong to this topic?

No. They are separate topics of the same chapter; this page covers the concept of sustainable development only.