Q.Coastal sand mining, whether legal or illegal, poses one of the biggest threats to our environment. Analyse the impact of sand mining along the Indian coasts, citing specific examples.

Body Analysis

Sand Mining refers to the physical extraction of sand from coastal and riverine ecosystems, including beaches, riverbeds, and ocean floors. Driven by rapid urbanization, global sand consumption has surged. According to the United Nations Environment Programme (UNEP), India is identified as one of the critical global hotspots for coastal sand mining.

graph TD
    CSM["Coastal Sand Mining"] --> CE["Coastal Erosion"]
    CSM --> LMB["Loss of Marine Biodiversity"]
    CSM --> SWI["Saline Water Intrusion"]
    CSM --> DM["Degradation of Mangroves and Wetlands"]
    CSM --> IVND["Increased Vulnerability to Natural Disasters"]
    CSM --> DLC["Displacement of Local Communities"]

---

Body

Environmental and Ecological Impacts on Indian Coasts

• Destruction of Coastal Ecosystems (Tamil Nadu): In Periyasamypuram, Tuticorin district, extensive sand extraction has led to severe ecological degradation. The local fish catch has dwindled, palm trees have withered, groundwater has turned brackish, and seawater has encroached into inland villages.
• Salinity Intrusion and Inundation (Kerala): In districts like Kollam, Alappuzha, Pathanamthitta, Kottayam, and Ernakulam, rampant sand mining has triggered seawater intrusion, coastal land submergence, and the salinization of freshwater aquifers.
• Threat to Marine Biodiversity (Turtle Nesting): Beaches serve as vital nesting grounds for endangered species like the Olive Ridley sea turtle. Sand mining disrupts their nesting habitats, destroying eggs and preventing hatchlings from safely reaching the sea.
• Severe Coastal Erosion (Karnataka): Unregulated sand mining along Karnataka's coastline has accelerated erosion, forcing the state government to spend crores of rupees on constructing artificial barriers.
• Regulatory and Legal Repercussions: Highlighting the severity of the issue, the National Green Tribunal (NGT) imposed a massive fine of ₹100 crore on the Andhra Pradesh government for failing to curb illegal sand mining operations.

Way Forward

• Spatial Planning: Implement robust spatial planning and minimize unnecessary concrete construction.
• Alternative Materials: Promote green infrastructure and sustainable substitutes like oil palm shell, bottom ash, and manufactured sand (M-sand).
• Strict Enforcement: Ensure absolute compliance with Coastal Regulation Zone (CRZ) norms and strengthen monitoring mechanisms to curb illegal extraction.

---