Subject: Mining Hazards

Sand mining refers to the extraction of sand from beaches, river mouths, dunes and seabeds for construction and land reclamation.

Impact of sand mining

Environmental Impacts

Accelerated Coastal Erosion – Removal of sand weakens natural barriers, causing shoreline retreat. Eg – Alappuzha (Kerala).

Habitat Destruction – Disturbs nesting sites and coastal biodiversity. Eg – Degradation of Olive Ridley turtle nesting beaches in Odisha.

Saline Intrusion & Groundwater Contamination – Eg – Tuticorin (Tamil Nadu) recorded rising salinity in wells.

Loss of Mangroves – Destabilised soil and altered hydrology harm protective ecosystems. Eg – Vegetation thinning in parts of the Sunderbans.

Economic Impacts

Damage to Infrastructure – Roads, bridges and coastal installations become unstable due to subsidence. Eg – Road collapse incidents in Uttar Kannada (Karnataka).

Decline in Tourism Revenue – Eroded and degraded beaches reduce tourist inflow.

Livelihood Loss for Fishing Communities – Altered seabed and turbidity reduce fish catch and destroy spawning grounds.

Social Impacts

Disaster induced displacement of coastal communities due to increased vulnerability

Health Risks from Contaminated Water – Saline intrusion affects drinking water quality.

Increased and sedimentation in rivers and coastal areas due to depletion of sand from river beds

Political & Governance Impacts

Rise of Illegal Sand Mining Networks – Criminalisation of mining fuels corruption. Eg – Sand mafias in Tamil Nadu, Andhra Pradesh.

Threats to Officials – Violent attacks on officers during enforcement drives.

Way Forward

Strengthen Regulatory Enforcement

Tighten monitoring of CRZ norms

GPS-tracked transport permits

Eg – Kerala’s drone-based monitoring model.

Promote Sustainable Alternatives – Eg- M-sand

Community-Based Coastal Stewardship– Eg – Odisha’s community patrolling linked to turtle conservation.

Ecological Restoration of Mined Coasts– Eg – Puducherry’s beach nourishment project.

Improve Inter-State Coordination – joint task forces to curb cross-border sand smuggling.

Integrate Sediment Budgeting in Coastal Planning to ensure river-to-coast sediment flow is maintained.

Ensuring sustainable extraction is essential to balance developmental needs with long-term coastal resilience

Coastal Erosion refers to breaking down and carrying away of materials by sea. As per National Centre for Coastal Research, about 33.6% of Indian coast is eroding.

Causes

Natural Causes

Cyclones and Storm Surges erode dunes and beaches. Eg- Bay of Bengal cyclone belts.

Climate-induced Sea-Level Rise submerges low-lying coasts. Eg- Sundarbans delta witnessing shoreline retreat.

Strong tidal flow and seasonal currents disturb sediment balance. Eg- West coast monsoonal erosion.

Loss of Natural Buffers – depletion of coral reefs, dunes or seagrass beds reduces wave dissipation. Eg- Reef loss around Lakshadweep.

Anthropogenic Causes

Construction of Ports, Breakwaters and Jetties interrupt sediment transport, causing erosion downdrift. Eg- Ennore and Puducherry coastlines.

River Damming – Dams reduce sediment supply reaching deltas and beaches. Eg- Shrinkage of Godavari and Narmada deltas.

Sand Mining removes beach sediment. Eg- Severe erosion hotspots in Kerala.

Coastal Land Reclamation increases erosion by altering the shoreline. Eg- Reclaimed coasts around Mumbai.

Destruction of Mangroves eliminates natural wave barriers.

Pollution and Ecosystem Degradation reduce shoreline stability. Eg- Coral mortality in Gulf of Mannar.

Effect

Effects on Environment

Loss of Coastal Habitats – Eg- Mangrove loss in the Sundarbans.

Saltwater Intrusion – degrade freshwater ecosystems. Eg- Salinisation of Andhra Pradesh coastal farmlands.

Loss of natural buffers heightens storm-surge and monsoon flooding risk. Eg- Erosion-induced flooding in Kerala’s low-lying coast.

Effects on Economy

Damage to Infrastructure – Roads, bridges and coastal installations become unstable due to subsidence. Eg – Road collapse incidents in Uttar Kannada (Karnataka).

Loss of Productive Land – Eg- Farmland abandonment in Tamil Nadu erosion belts.

Threat to critical infrastructure – Eg- offshore oil plants and windmills

Effects on Society

Displacement of Coastal Communities due to Shrinking shorelines

Loss of Livelihoods – Fishing communities lose landing points and fish stocks.

Saline intrusion reduces drinking water availability and increases contamination risks.

Loss of Cultural Heritage – Eg- Threats to traditional coastal temples in Tamil Nadu.

Available coastal Management Techniques

Hard Engineering Measures

Seawalls to block wave attack.

Groynes – Trap sand and widen beaches. Eg- Puducherry groyne field.

Breakwaters – Offshore barriers that reduce wave energy. Eg- Chennai port.

Revetments – Sloped rock armour to absorb wave impact.

Soft Engineering Measures

Ecological Restoration of Mined Coasts– Eg – Puducherry’s beach nourishment project.

Dune Stabilisation – Planting grasses and fencing dunes.

Mangrove Restoration – Eg- MISHTI-based efforts in Sundarbans.

Coral and Seagrass Restoration – Eg- Andaman reef rehabilitation.

Beach cleanliness drives – Eg- Blue Flag Certification

Integrated Coastal Zone Management (ICZM)

Sediment Budgeting in Coastal Planning to ensure river-to-coast sediment flow is maintained.

Ecosystem-Based Coastal Planning – Combines geomorphology, ecology and socio-economic factors. Eg- ICZM projects in Gujarat, Odisha, West Bengal.

Regulatory Tools (CRZ Norms) – no-development zones and hazard mapping reduce vulnerability.

Coastal Management Information System (CMIS) to collect nearshore coastal data for planning, designing, and maintaining coastal protection structures

Early Warning Systems – INCOIS alerts for timely action.

Coastal erosion in India requires integrated, science-based and community-driven management

Mineral resources form the backbone of India’s industrial and economic growth, driving sectors such as energy, infrastructure, manufacturing, and defence. As Jawaharlal Nehru called them, minerals are the “basic raw materials of modern civilization.”

Importance of Mineral Resources for the Economy

Energy Security

Uranium and thorium reserves critical for India’s nuclear power program.

Industrial Development

Iron ore and bauxite support steel and aluminium industries, pillars of infrastructure.

Limestone feeds cement industry, vital for housing and construction.

Manufacturing & Strategic Sectors

Rare Earth Elements (REEs), lithium, cobalt are essential for electronics, EV batteries, semiconductors, defence equipment.

India’s defence self-reliance depends on availability of titanium, tungsten, chromium.

Employment & Regional Development – Mining sector provides 2.3 million direct jobs in backward regions like Chhattisgarh, Odisha, Jharkhand.

Revenue & Fiscal Federalism – Royalty from minerals forms a major part of state revenues.

Strategic & Geopolitical Value – Critical minerals like lithium and cobalt are central to energy transition and Atmanirbhar Bharat.

Mining as an Environmental Hazard

Deforestation – Open-cast mining requires clearing of vast forests. Eg- Coal mining in Hasdeo (Chhattisgarh) leading to elephant habitat fragmentation

Soil Erosion and Land Degradation – Removal of topsoil and overburden dumping degrade agricultural lands.

Water Pollution – Acid Mine Drainage (AMD) contaminates rivers and groundwater with heavy metals. Eg- Sukinda Chromite Mines (Odisha).

Air Pollution – Dust, particulate matter, and gases from blasting and transport cause respiratory diseases. Coal mining regions like Singrauli have high PM2.5 levels

Noise and Vibrations – Blasting operations disturb wildlife and damage human settlements.

Climate Change Contribution – Coal mining emits methane, a greenhouse gas with high warming potential.

Loss of Ecosystem Services – Mining destroys wetlands, grazing lands, and forest resources, affecting agriculture, fisheries, and traditional livelihoods.

Improper disposal of mine tailings releases radioactive and toxic materials, leading to long-term soil and water contamination (Eg- Uranium mining in Jaduguda, Jharkhand).

Mining-induced displacement of tribal populations. Eg- Niyamgiri Hills bauxite project (Vedanta vs Dongria Kondh tribe).

Remedial Measures Required

Legislative & Regulatory – Enforce EPA 1986, MMDR Act 2015, and mandatory EIA with periodic audits.

Sustainable Practices – Adopt eco-friendly mining technologies like GIS monitoring, remote sensing, and controlled blasting.

Reclamation & Rehabilitation – Ensure progressive mine closure, land reclamation, backfilling, and afforestation of mined areas.

Pollution Control – Introduce dust suppression, acid mine drainage treatment, and soil stabilization measures.

Community-Centric Measures – Utilize District Mineral Foundation (DMF) funds for health, education, and livelihoods of affected people.

Institutional Monitoring – Strengthen Indian Bureau of Mines (IBM) oversight and use drones/AI for real-time compliance

Global Best Practices – Replicate Australia’s mine rehabilitation bonds and Canada’s TSM framework for accountability.

“We do not inherit the earth from our ancestors; we borrow it from our children.” Thus, development must be in harmony with the environment.