[Indian Economic Development] Chapter 7: Environment and Sustainable Development

Environment and Sustainable Development

Economic growth has been the dominant goal since independence. But growth based on over-exploiting natural resources and polluting the environment is not sustainable. This chapter examines the relationship between the economy and the environment, the concept of sustainable development, and India's specific environmental challenges.

1. 1.The environment performs three critical functions for the economy:
2. 2.Resource supplier — provides raw materials (minerals, timber, water, land) for production
3. 3.Waste sink — absorbs and neutralises waste and pollution generated by economic activity
4. 4.Life-support function — provides breathable air, clean water, climate stability, and biodiversity essential for all life

These functions are interlinked. As the economy grows and resource use increases, the environment's ability to perform all three functions can degrade.

• The environment has a carrying capacity — a limit to how much resource extraction and waste absorption it can sustain without permanent damage. When economic activity consistently exceeds carrying capacity:
• Renewable resources are depleted faster than they regenerate (overfishing, deforestation)
• Non-renewable resources are consumed and permanently lost
• Waste exceeds the environment's assimilation capacity (air/water pollution crosses safe limits)

The most widely used definition, from the Brundtland Commission (1987), is:
"Development that meets the needs of the present without compromising the ability of future generations to meet their own needs."

• Key dimensions:
• Intra-generational equity — fairness within the current generation (between rich and poor countries/people)
• Inter-generational equity — fairness to future generations (not depleting their resource base)

1. 1.Climate Change / Global Warming — burning of fossil fuels releases CO2 and other greenhouse gases, trapping heat. Global temperatures have risen by approximately 1.1 degree C above pre-industrial levels by 2020.
2. 2.Ozone Layer Depletion — CFCs (used in refrigerants) deplete the stratospheric ozone layer that shields Earth from UV radiation.
3. 3.Loss of Biodiversity — deforestation, habitat destruction, and pollution cause species extinction at a rate far above natural background levels.
4. 4.Water Scarcity — over-extraction of groundwater and pollution threaten freshwater availability.

• India faces an environmental crisis on multiple fronts:
• Air pollution — 14 of the world's 20 most polluted cities are in India (IQAir reports); vehicle emissions, industrial pollution, crop burning (stubble burning in Punjab/Haryana)
• Water pollution — industrial effluents and untreated sewage contaminate rivers (Ganga, Yamuna); over 60% of India's water bodies are polluted
• Land degradation — soil erosion, salinity from over-irrigation, loss of forest cover
• Deforestation — clearing for agriculture, roads, mines, and urban expansion reduces forest cover
• Groundwater depletion — intensive irrigation in Green Revolution areas has lowered water tables severely

1. 1.Using renewable energy — solar, wind, hydro instead of fossil fuels
2. 2.Resource efficiency — producing more with less (energy efficiency, water-efficient irrigation like drip irrigation)
3. 3.Pollution control regulations — emission standards, effluent treatment plants
4. 4.Environmental taxation — carbon tax, green tax to make polluters pay
5. 5.Tradeable pollution permits — cap and trade systems
6. 6.Community and traditional knowledge — indigenous water harvesting (stepwells, kunds), sacred groves (as biodiversity reserves)
7. 7.International agreements — Kyoto Protocol, Paris Agreement (2015)

• National Environment Policy 2006
• National Action Plan on Climate Change 2008 — eight national missions including solar (Jawaharlal Nehru National Solar Mission) and water conservation
• Wetland conservation, Project Tiger, Project Elephant
• Plastic waste management rules; e-waste regulations

Example 1: The Carrying Capacity Breach
India extracts about 250 billion litres of groundwater per year, but recharge is only 150 billion litres per year. This is 100 billion litres above carrying capacity. Every year the water table drops. In 30 years, vast areas of India could face groundwater exhaustion — illustrating what happens when carrying capacity is breached.

Example 2: Global Warming and India
India is among the most climate-vulnerable countries. Sea level rise threatens the Sundarbans and coastal cities like Mumbai. Erratic monsoons affect agriculture. Glacial retreat in the Himalayas threatens river flows for 400 million people who depend on glacier-fed rivers. India emits roughly 2.5 tonnes CO2 per person vs. USA's 15 tonnes — yet suffers more consequences.

Example 3: Cost-Benefit of Pollution Control
A factory emits sulphur dioxide, causing acid rain that damages crops worth Rs. 10 crore annually. Installing a scrubber costs the factory Rs. 2 crore. From society's perspective, paying Rs. 2 crore (private cost) to prevent Rs. 10 crore (social cost) is clearly rational. But without regulation, the factory has no incentive — this is a negative externality or market failure.

Example 4: Traditional Sustainable Practice
Rajasthan's "johad" (earthen check dam) is a centuries-old water harvesting system built by village communities. It captures monsoon runoff, recharges the water table, and supports agriculture through dry seasons. The Tarun Bharat Sangh NGO revived over 1,000 johads in Alwar district, restoring rivers that had dried up. Traditional knowledge as a sustainable development tool.

Example 5: Renewable Energy Transition
India installed 20 gigawatts of solar capacity by 2022 and targets 500 GW of non-fossil fuel capacity by 2030. As solar panel costs have fallen from Rs. 100 per watt (2010) to Rs. 20 per watt (2023), solar electricity is now cheaper than coal-based electricity in many states — showing how green technology can align economic and environmental goals.

Example 6: Deforestation vs. Carbon Sink
India's forests absorb about 2.3 billion tonnes of CO2 per year. Deforestation for mining, roads, and agriculture reduces this "carbon sink" capacity. Each hectare of forest lost can release 100-300 tonnes of stored carbon AND permanently reduce future CO2 absorption. This makes forest conservation a critical climate policy.

Example 7: The Paris Agreement and India
Under the Paris Agreement (2015), India pledged to: reduce emissions intensity of GDP by 33-35% by 2030 (compared to 2005); achieve 40% non-fossil fuel power capacity; and create an additional carbon sink of 2.5-3 billion tonnes CO2 through forests. India updated its NDC (Nationally Determined Contribution) in 2022 with more ambitious targets.