Mains Practice Questions for the Day
Q. The Western Ghats ESA debate reflects the challenge of balancing ecological security with livelihood and development concerns. Examine.
(UPSC GS Paper I: Geography, Physical Geography of India, Western Ghats and Monsoon System)
Introduction:
The Western Ghats are a 1,500-km mountain chain extending across six States. They are a global biodiversity hotspot, influence the monsoon and sustain major peninsular rivers. However, the region is also densely populated and supports settlements, agriculture, plantations, mining and industries, making ESA demarcation politically and economically complex.
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Ecological Imperative
The Ghats contain highly endemic flora and fauna and form important tiger and elephant habitats. Their forests and springs sustain rivers such as the Godavari, Krishna, Cauvery and Periyar.
Deforestation, quarrying, mining, polluting industries and unregulated construction threaten ecological continuity, water security and slope stability. The Kasturirangan Committee therefore proposed protection of the relatively undisturbed natural landscape.
Development and Livelihood Concerns
States argue that proposed boundaries include villages, plantations, agricultural lands and revenue areas. Kerala seeks exclusions in plantation regions, Maharashtra wants 378 villages removed, while Karnataka rejects the recommendations.
States fear restrictions on:
- Agriculture and plantations
- Housing and infrastructure
- Mining and industries
- Employment and local revenue
Differences between satellite mapping, village records and actual land use have further delayed consensus.
Emerging Approach
The Centre is considering phased notification, beginning with States where boundaries are close to finalisation. A 2022 expert committee is reconciling satellite data with village and revenue records.
The possibility of grant-in-aid and Payment for Ecosystem Services may compensate States and communities for protecting nationally important ecological assets.
Way Forward
The final framework should ensure:
- Scientific ground verification
- Graded rather than uniform restrictions
- Protection of ecological corridors
- Participation of local communities
- Clear regulatory categories
- Financial incentives for conservation
Conclusion:
Conservation of the Western Ghats cannot be postponed, but it must be socially legitimate. A phased, consultative and incentive-based ESA framework can reconcile biodiversity protection with livelihood security and cooperative federalism.
Q. Biochar can transform India’s agricultural and urban organic waste into a resource for soil restoration, climate mitigation and renewable energy. Discuss.
( UPSC GS Paper III: Agriculture, Soil Degradation, Stubble Burning, Climate Change, Carbon Markets, Renewable Energy and Waste Management)
Introduction:
India generates more than 500 million tonnes of crop waste annually, while over half of its nearly 62 million tonnes of municipal solid waste is biodegradable. Much of this biomass is burned or dumped, causing air pollution, methane emissions and loss of valuable organic matter. Biochar offers a circular waste-to-wealth solution.
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What is Biochar?
Biochar is a porous, carbon-rich material produced by heating biomass at 300°C–700°C in an oxygen-depleted environment through pyrolysis.
Valuable By-products
The process also produces:
- Syngas, which can generate electricity
- Bio-oil, which can substitute diesel or kerosene
Role in Soil Restoration
Improving Soil Health
Biochar increases soil organic carbon, improves soil structure and creates a favourable habitat for beneficial microorganisms.
Enhancing Water and Nutrient Retention
Its porous structure can increase water-holding capacity by 10–25% and reduce nutrient loss.
Raising Crop Productivity
Studies indicate crop-yield improvements of 10–30%, particularly in degraded and nutrient-deficient soils.
Field trials using maize-stalk biochar in Maharashtra and coconut-residue biochar in Kerala have shown improvements in soil fertility.
Role in Climate Mitigation
Carbon Sequestration
Biochar stores carbon in a stable form for centuries. One tonne may sequester nearly 2.5–3 tonnes of CO₂ equivalent.
Reducing Residue-Burning Emissions
Converting crop residues into biochar prevents greenhouse-gas and particulate emissions from open-field burning.
Carbon-Credit Income
Each tonne of certified biochar may generate 2–2.8 tonnes of CO₂-equivalent carbon credits, providing income opportunities for farmers and cooperatives.
Renewable Energy and Waste Management
Energy Generation
Syngas can support electricity generation, while bio-oil can reduce dependence on fossil fuels and crude-oil imports.
Urban Organic Waste
Biodegradable municipal waste, sewage sludge and food-processing residues can be converted into biochar, reducing landfill pressure and methane emissions.
Other Uses
Modified biochar can remove heavy metals from wastewater and can also improve the strength and heat resistance of concrete.
Key Challenges
- Low farmer awareness
- Limited decentralised pyrolysis units
- High certification and MRV costs
- Weak market and carbon-credit linkages
- Difficulty in collecting and transporting biomass
- High initial investment
Way Forward
- Establish local, small-scale pyrolysis units.
- Integrate biochar with natural farming and soil-health programmes.
- Support farmer cooperatives in biomass collection and processing.
- Develop strong measurement, reporting and verification systems.
- Enable affordable access to carbon markets.
- Promote research, demonstrations and private investment.
Conclusion:
Biochar can convert India’s farm smoke and organic waste into “black gold” by improving soil health, reducing emissions, generating renewable energy and creating rural income. Its large-scale success will depend on affordable technology, institutional support and reliable market linkages.
