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Ecology & Environment, Geography
Mahesh

26/07/22 20:39 PM IST

Coastal Erosion

In News 
  • As per the Ministry of Earth Science (MoES) 34% of India’s coastline is under erosion. West Bengal has suffered the worst (60.5% of its coast is threatened by erosion).
Coastal Erosion 
  • Coastal Erosion is the process by which local sea-level rise, strong wave action, and coastal flooding wear down or carry away rocks, soils, and/or sands along the coast.
  • Process: There are four main processes of coastal erosion. These are corrosion, abrasion, hydraulic action and attrition.
  • Agency: National Centre for Coastal Research (NCCR) (Under MoES) is monitoring shorelines since 1990.
  • Impact: Destruction of biodiversity and habitat, loss of fertile land, loss of tourism, etc.
Mitigation 
  • Coastal erosion structures Seawalls, revetments, bulkheads, groins and breakwaters may reduce erosion in the short term.
  • Indian National Centre for Ocean Information Services (INCOIS)has prepared and published an atlas of Coastal Vulnerability Index (CVI) maps for the entire coastline
  • Integrated Coastal Zone Management Plan (ICZM): It ensures optimum suitable use of coastal natural resources
  • National centre for Sustainable coastal management (NSCSCM): To research the areas of CZM including coastal resources and the environment.
Source- The Hindu 

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