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Climate Change’ is a global problem. How will India be affected by climate change? How Himalayan and coastal states of India be affected by climate change?

GS 3
Environment & Ecology
2017
15 Marks

Climate change poses unprecedented challenges globally, with India being particularly vulnerable due to its diverse geography and large population. Recent IPCC reports indicate that India will experience intensified climate impacts, requiring urgent adaptation measures.

Climate Change Impacts on India

  • Average temperature increase of 1.2°C since pre-industrial times
  • Heat waves becoming more frequent and intense, affecting northern plains
  • Erratic monsoon patterns disrupting agricultural cycles
  • Increased frequency of cyclones and droughts
  • Forest fires intensifying, particularly in central India
Climate ImpactCurrent StatusProjected Impact (2050)
Temperature Rise+1.2°C+2.5-4°C
Sea Level Rise1.3mm/year300-600mm
Extreme Weather Days93% (2024)>95% annually
Agricultural Loss3.2M hectares (2024)15-25% yield reduction

Impact on Himalayan States

  • Glacial Retreat & Water Security

    • Himalayan glaciers retreating at 23 meters annually
    • Gangotri glacier has retreated 850 meters since 1780
    • Reduced water flow affecting Ganga, Brahmaputra, and Indus river systems
    • Threat to water security for 500 million people
  • Ecosystem & Biodiversity Loss

    • Shifting of alpine vegetation to higher altitudes
    • Threat to endemic species like Snow Leopard and Himalayan Tahr
    • Increased landslides and cloud bursts (Kedarnath 2013, Uttarakhand 2021)
    • Loss of traditional agriculture and pastoral practices

Impact on Coastal States

  • Sea Level Rise & Coastal Erosion

    • 12 major coastal cities at risk of submersion by 2100
    • Sundarbans delta losing 4.6 square kilometers annually
    • Coastal erosion affecting Kerala, Karnataka, and Tamil Nadu
    • Mumbai experiencing increased flooding frequency
  • Marine Ecosystem Degradation

    • Coral bleaching in Andaman & Nicobar Islands and Gulf of Mannar
    • Decline in marine fisheries affecting 4 million fisher families
    • Saltwater intrusion contaminating groundwater in Gujarat and West Bengal
    • Mangrove destruction reducing natural coastal protection

India's response includes the National Action Plan on Climate Change (NAPCC) and Nationally Determined Contributions (NDCs) targeting net-zero emissions by 2070. Strengthening climate resilience requires integrated approaches combining mitigation, adaptation, and sustainable development strategies.

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