Environment-economy interaction

Environment and economy are interdependent. The environment provides:

  • Resources — minerals, fossil fuels, water, soil, forests, fish — inputs to production;
  • Sink — absorbs waste, emissions, effluents;
  • Life support — air, water, climate stability;
  • Amenity value — aesthetic and cultural services.

The economy in turn extracts resources and discharges waste back into the environment. As long as resources are renewable and waste is biodegradable within ecosystem absorption capacity, the system is sustainable. Beyond that capacity, environmental degradation begins.

3rd
Global GHG emitter (cumulative)
2070
Net Zero target
500 GW
RE by 2030
~22%
Forest cover

Four functions of environment

FunctionWhat it means
Supply of resourcesProvides raw materials — minerals, water, forests, land
Assimilation of wasteAbsorbs effluents and emissions up to carrying capacity
Life supportAir, water, soil, climate make life possible
Amenity valueAesthetic, recreational, cultural services

Environmental problems in India

  • Air pollution — 14 of world's 20 most polluted cities are in India (IQAir 2023);
  • Water pollution — 70% of surface water polluted;
  • Land degradation — ~30% of land degraded;
  • Deforestation — forest cover ~22% vs 33% target;
  • Climate change — temperatures rising; monsoon variability;
  • Groundwater depletion — Punjab, Haryana, Western UP critical;
  • Solid waste — ~62 million tonnes/year urban; ~70% unprocessed;
  • Biodiversity loss — species extinction, habitat destruction;
  • Soil erosion — Western Ghats, Himalayas;
  • Coastal erosion — sea level rise.

Sustainable development — concept

The term sustainable development was popularised by the 1987 Brundtland Commission report "Our Common Future". The classic definition:

"Development that meets the needs of the present without compromising the ability of future generations to meet their own needs."

Three pillars (sometimes called the "triple bottom line"):

  1. Economic sustainability — long-term economic growth without depleting resources;
  2. Social sustainability — equity, inclusion, social cohesion across generations;
  3. Environmental sustainability — ecological balance, biodiversity, climate stability.

Key concepts:

  • Renewable vs non-renewable resources — water, solar, wind are renewable; oil, coal, minerals are not;
  • Stock vs flow — current consumption (flow) shouldn't deplete capital (stock);
  • Natural capital — forests, oceans, atmosphere, soils — must be maintained;
  • Inter-generational equity — current generation cannot pass on degraded environment.

Brundtland Commission 1987

Officially the World Commission on Environment and Development (WCED), chaired by Norwegian PM Gro Harlem Brundtland. Report: Our Common Future, 1987.

Key contributions:

  • Defined sustainable development;
  • Showed that environment and development are intertwined;
  • Laid foundation for the 1992 Rio Earth Summit;
  • Inspired the UN Sustainable Development Goals 2015-2030.

Climate change and India's NDCs

India is the world's third-largest GHG emitter in absolute terms but among the lowest per capita (~2 tonnes vs US ~15). India is a key voice for differentiated responsibilities under the UNFCCC.

India's Paris commitments (2015) and updated NDC (2022)

  • Reduce emissions intensity of GDP by 45% by 2030 (updated from 33-35%);
  • Achieve 50% non-fossil power capacity by 2030 (updated from 40%);
  • 500 GW renewable capacity by 2030 (PM Modi, Glasgow COP26);
  • Create additional carbon sink of 2.5-3 billion tonnes CO2e through tree cover by 2030;
  • Net Zero by 2070 (PM Modi, COP26 Glasgow Nov 2021).

Panchamrit pledge

Five climate commitments by PM Modi at COP26: (1) 500 GW non-fossil capacity by 2030; (2) 50% energy needs from RE by 2030; (3) reduce projected emissions by 1 billion tonnes by 2030; (4) reduce emissions intensity 45% by 2030; (5) Net Zero by 2070.

National Action Plan on Climate Change (NAPCC)

Released June 2008. Comprises eight national missions:

  1. National Solar Mission;
  2. National Mission for Enhanced Energy Efficiency;
  3. National Mission on Sustainable Habitat;
  4. National Water Mission;
  5. National Mission for Sustaining Himalayan Ecosystem;
  6. National Mission for a Green India;
  7. National Mission for Sustainable Agriculture;
  8. National Mission on Strategic Knowledge for Climate Change.

State Action Plans on Climate Change (SAPCC) developed for each state.

Mission LiFE — Lifestyle for Environment

Launched by PM Modi at COP26 Glasgow (2021); formally adopted at G20 New Delhi 2023. Calls on individuals worldwide to adopt simple sustainability behaviours — reduce water use, reuse products, recycle materials, plant trees, use public transport. India led the inclusion of LiFE in the G20 New Delhi Declaration.

UN Sustainable Development Goals (SDGs)

17 goals adopted by UN General Assembly in September 2015 for 2015-2030. Replace the MDGs (2000-2015). Focus areas: end poverty, end hunger, good health, quality education, gender equality, clean water, affordable energy, decent work, industry/innovation, reduced inequalities, sustainable cities, responsible consumption, climate action, life below water, life on land, peace/justice, partnerships.

NITI Aayog tracks India's SDG progress through the SDG India Index. India's overall SDG Index score rose from 57 (2018) to ~71 (2023).

Circular economy

Linear economy: take → make → dispose.
Circular economy: take → make → reuse → recycle → restore.

India's circular economy initiatives:

  • Plastic Waste Management Rules 2016 + amendments (2022 — banned 19 single-use plastic items);
  • E-Waste (Management) Rules 2022 — extended producer responsibility;
  • Battery Waste Management Rules 2022;
  • Vehicle Scrappage Policy 2021;
  • Mission Circular Economy (under preparation 2024+);
  • National Resource Efficiency Policy (NREP) — draft 2019.

NCERT exercise solutions — selected answers

Q1. What is meant by environment?

ENVIRONMENT is the TOTALITY of all SURROUNDINGS — biotic (living: plants, animals, microorganisms) and abiotic (non-living: air, water, soil, climate, minerals) — that AFFECT, and are AFFECTED BY, human activities. The environment performs FOUR VITAL FUNCTIONS: (1) Supplies RESOURCES — renewable (water, sun, wind, forests) and non-renewable (oil, coal, minerals); (2) ASSIMILATES WASTE — Absorbs human-generated emissions and effluents up to its CARRYING CAPACITY; (3) Provides LIFE-SUPPORT — Air, water, soil, climate make life possible; (4) AESTHETIC value — natural beauty, recreation, cultural significance. ENVIRONMENT and ECONOMY are INTERDEPENDENT — economy DRAWS FROM environment and DISCHARGES BACK. As long as resource extraction is WITHIN renewable rates and waste is WITHIN absorption capacity, the system is SUSTAINABLE. BEYOND that capacity, environmental DEGRADATION begins. INDIA's environment faces multiple pressures — POLLUTION, deforestation, climate change, biodiversity loss, water stress — making environmental policy CENTRAL to development.

Q2. What happens when the rate of resource extraction exceeds that of their regeneration?

When resource extraction exceeds REGENERATION RATE, several consequences follow: (1) RESOURCE DEPLETION — Forests cleared, fish stocks exhausted, groundwater levels falling, soil eroded; (2) PRICE INCREASE — As resources become scarce, prices rise (e.g., oil shocks); (3) ECOSYSTEM DAMAGE — Loss of biodiversity; species extinction; soil erosion; (4) HEALTH IMPACT — Pollution worsens; respiratory diseases; water-borne diseases; (5) ECONOMIC DOWNTURN — Industries depending on scarce resources suffer; (6) MIGRATION — Climate refugees, displacement from agricultural areas; (7) INEQUALITY — Poor lose access to common resources (forests, water); (8) ARMED CONFLICTS over resources — Sudan, Syria water, mineral conflicts; (9) ECOLOGICAL TIPPING POINTS — Coral bleaching, Amazon-savanna shift, Arctic ice melt. EXAMPLES IN INDIA: (1) PUNJAB groundwater — Pumping 1.5× regeneration; near-future crisis; (2) AMUR FALCON — Once near-extinct due to over-hunting; protected now; (3) WESTERN GHATS — Soil erosion from deforestation; (4) MUMBAI groundwater — saline intrusion; (5) Cauvery water — inter-state dispute. SOLUTIONS: (1) RECYCLING; (2) RENEWABLE substitution; (3) Efficiency improvements; (4) Population stabilisation; (5) Behavioural change (LiFE); (6) Conservation policies; (7) Cross-border cooperation.

Q3. Classify the following into renewable and non-renewable resources.

RENEWABLE — Naturally replenished within a human time-scale: (1) FORESTS — But require active conservation; (2) WATER — Hydrological cycle replenishes; but groundwater can be over-pumped; (3) SOLAR ENERGY — Unlimited essentially; (4) WIND ENERGY — Unlimited; (5) BIOMASS — Plants regrow; (6) GEOTHERMAL — Earth's internal heat; (7) TIDAL — Moon's gravitational pull; (8) HYDRO — Water flow energy; (9) FISH — If harvested sustainably. NON-RENEWABLE — Fixed stocks, regeneration takes geological time: (1) COAL — Hundreds of millions of years; (2) PETROLEUM/OIL — Same; (3) NATURAL GAS — Same; (4) URANIUM — Limited deposits; (5) METALS (Iron, copper, aluminium, lithium); (6) PHOSPHORUS — for fertilisers; (7) RARE EARTHS. CRITICAL INSIGHT: Many 'renewable' resources can become EFFECTIVELY NON-RENEWABLE if extraction exceeds regeneration. Example: GROUNDWATER is renewable in principle but DEPLETION in Punjab/Haryana is FASTER than recharge; FORESTS regrow but DEFORESTATION outpaces planting. POLICY IMPLICATION: India's energy transition from coal (non-renewable) to solar/wind (renewable) is essential; protection of forests, water bodies, biodiversity is critical; circular economy principles apply both.

Q4. Two major environmental issues facing the world today are __________ and __________.

Two MAJOR ENVIRONMENTAL ISSUES facing the world today are CLIMATE CHANGE and BIODIVERSITY LOSS — these are the 'TWIN CRISES' identified by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) and the Intergovernmental Panel on Climate Change (IPCC). CLIMATE CHANGE: (1) 1.1°C global warming since pre-industrial; (2) Rising sea levels (3.4mm/year); (3) Extreme weather events (heatwaves, cyclones, floods); (4) Ocean acidification; (5) Melting glaciers (Himalayas losing ~50% by 2100 under high emissions); (6) GHG concentrations highest in 800,000 years. BIODIVERSITY LOSS: (1) Wildlife populations down ~69% since 1970 (WWF Living Planet Index 2022); (2) ~1 million species threatened with extinction (IPBES 2019); (3) HABITAT DESTRUCTION leading cause; (4) Pollination crisis; (5) Coral reefs declining. OTHER MAJOR ISSUES (related but distinct): (3) AIR POLLUTION — kills 7 million globally yearly; (4) WATER pollution — 2 billion lack safe water; (5) DEFORESTATION — 10 million hectares lost annually; (6) PLASTIC POLLUTION — 8 million tonnes enter oceans yearly; (7) DESERTIFICATION — affects 25% of land; (8) OZONE LAYER — improving thanks to Montreal Protocol 1987. INDIA'S CONTRIBUTIONS: (1) Reducing GHG intensity; (2) International Solar Alliance; (3) CDRI; (4) Mission LiFE; (5) Biodiversity Act 2002. The TWIN CRISES are INTERLINKED — climate change drives biodiversity loss; biodiversity protects against climate impacts.

Q5. How do you understand the concept of sustainable development? Explain the strategies needed for sustainable development.

SUSTAINABLE DEVELOPMENT (BRUNDTLAND 1987): 'Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.' THREE PILLARS: (1) ECONOMIC sustainability — Long-term growth without depleting resources; (2) SOCIAL sustainability — Equity across generations and groups; (3) ENVIRONMENTAL sustainability — Ecological balance. STRATEGIES: (1) USE OF RENEWABLE ENERGY — Solar, wind, hydro; reduces fossil fuel dependence and emissions; India targets 500 GW RE by 2030; (2) ENERGY EFFICIENCY — Bureau of Energy Efficiency star ratings; PAT (Perform Achieve Trade) scheme; LED bulbs (~37 crore distributed under UJALA); (3) AFFORESTATION — Green India Mission; 33% forest cover target (NFP 1988); Compensatory Afforestation Fund Management; (4) BIODIVERSITY CONSERVATION — Biodiversity Act 2002; protected areas (~5% of land); Biological Diversity (Amendment) Act 2023; (5) WATER CONSERVATION — Watershed development; rainwater harvesting; Jal Jeevan Mission; (6) SUSTAINABLE AGRICULTURE — Organic farming; ZBNF; Millet promotion; (7) GREEN BUILDINGS — Energy efficient design; LEED certified; (8) WASTE MANAGEMENT — Recycling; circular economy; EPR; (9) SUSTAINABLE TRANSPORT — Electric vehicles (FAME India); Metro rail; cycle infrastructure; (10) CLIMATE-RESILIENT INFRASTRUCTURE — CDRI; resilient roads, ports; (11) SUSTAINABLE CONSUMPTION — Mission LiFE; (12) GREEN FINANCE — Green bonds; sustainable lending; (13) BEHAVIOURAL CHANGE — Public awareness; education; (14) PUBLIC-PRIVATE PARTNERSHIPS; (15) International cooperation — Paris, CDRI, ISA. India's net-zero by 2070 commitment + 50% non-fossil capacity by 2030 + Panchamrit + LiFE Mission together embody a comprehensive sustainable development strategy.

Q6. Identify six factors which are contributing to the environmental crisis in India.

Six major factors contributing to India's environmental crisis: (1) RAPID POPULATION GROWTH — 144 crore population (largest in world); puts pressure on resources (water, energy, land); urban India alone produces 62 million tonnes solid waste annually; (2) RAPID INDUSTRIALISATION — Industrial pollution; e-waste; chemical effluents; air quality deteriorating in cities; Bhopal, Vizag-type disasters; ~700 chemical hotspots; (3) URBANISATION + ECONOMIC GROWTH — ~36% urban; CO2 emissions rising; vehicle pollution; concrete-dominated cities increasing heat island effect; (4) DEFORESTATION — ~22% forest cover vs 33% target; forest loss accelerating; biodiversity loss; soil erosion; climate impact; (5) AGRICULTURAL EXPANSION + INTENSIFICATION — Land conversion; chemical fertiliser/pesticide use; groundwater over-extraction; Green Revolution legacy in Punjab/Haryana; (6) CLIMATE CHANGE IMPACT — Heatwaves intensifying; cyclones increasing; sea level rise; glacial retreat; agricultural variability; (7) POLLUTION (specific) — Air (14 of 20 most polluted cities globally), water (70% surface water polluted), soil (chemical contamination); (8) MINING AND EXTRACTIVE INDUSTRIES — Coal, iron, bauxite, sand mining; ecological damage; tribal displacement; (9) PLASTIC AND WASTE CRISIS — 4.1 million tonnes plastic/year; mismanagement; (10) E-WASTE — World's 3rd largest generator; 3 million tonnes/year; (11) ENERGY DEMAND — Coal-dominated; air pollution; CO2 emissions; (12) WATER STRESS — 70% rivers polluted; groundwater depletion; ~600 million face high water stress (NITI Aayog). POLICY RESPONSE: NAPCC, LiFE Mission, Net Zero 2070, ISA, CDRI, comprehensive environmental laws. INDIA needs SUSTAINABLE DEVELOPMENT as a HARD CONSTRAINT on economic policy.

UPSC PYQ tagging

UPSC angle

Environment & Sustainable Development is core GS-3 territory. Strong answers cite the four functions of environment, Brundtland 1987 definition, three pillars of sustainable development, NAPCC + India's NDCs + Panchamrit + Net Zero 2070, NITI SDG Index, and circular economy initiatives.

  • 2018 GS-3: "How does the cropping pattern in India differ from that of the developed countries? Discuss the role of agriculture in India's sustainable development."
  • 2022 GS-3: "Examine the implications of NITI Aayog's SDG India Index 2020. How can India accelerate the SDG agenda?"
  • 2024 GS-3: "Discuss India's Net Zero 2070 commitment. What are the key sectoral pathways?"
  • 2020 GS-3: "Discuss the role of Mission LiFE in promoting sustainable consumption and lifestyles."
  • Likely 2026: "Examine the relationship between climate change, biodiversity loss, and economic development in India."

🎓 Class 11 Indian Economic Development — COMPLETE at 9/9

You have completed all nine chapters of NCERT Class 11 Indian Economic Development — Eve of Independence, Five Year Plans, LPG 1991, Poverty, Human Capital, Rural Development, Employment, Infrastructure, and Environment & Sustainable Development. The sixth NCERT textbook on Padho.club is now fully live. Together with Class 11 Polity, Class 10 History, Class 9 Geography, Class 12 Polity, and Class 10 Economics, you have the complete foundational NCERT-IED preparation set for UPSC and state PSC exams. Pair this with NCERT Class 12 Macroeconomics, the Economic Survey, and current affairs for full GS-3 economy coverage.

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