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Climate Change Impact on Sundarbans Biodiversity and Ecosystem

Source:icsf ↗

Why It Matters

Crucial for West Bengal civil services aspirants regarding regional geography, environmental degradation, and ecological conservation of the Sundarbans.

Summary

The article discusses how climate change is critically impacting the biodiversity-rich Sundarbans region of West Bengal, affecting ecosystems, local communities, and traditional livelihoods.

Key Points

  • Climate change is severely impacting the biodiversity-rich Sundarbans region in West Bengal.
  • Rising sea levels, coastal erosion, and extreme weather events threaten both local livelihoods and unique mangrove ecosystems.
  • The ecological vulnerability of the world's largest mangrove delta requires urgent conservation and climate-resilience strategies.

Prelims Trap

Sundarbans was designated as a Ramsar Wetland of International Importance in 1987.

Aspirants often confuse the Ramsar wetland designation year (2019) with the UNESCO World Heritage site inscription year (1987).

Static Concepts Connected

Geography of West Bengal & Environment

What are the key geographical and ecological features of the Sundarbans in West Bengal?

  • Largest Delta: World's largest contiguous mangrove delta formed by the Ganges-Brahmaputra-Meghna river system.
  • Mangrove Share: Accounts for over 60% of India's total mangrove forest cover, housing the Royal Bengal Tiger.
  • Global Status: Designated as a UNESCO World Heritage Site (1987) and a Ramsar Wetland of International Importance (2019).

Cross-Topic Patterns

  • Climate Migration & West Bengal Demography

    Rising sea levels and coastal erosion displace vulnerable populations, leading to rapid climate-induced out-migration and severe livelihood insecurity in deltaic districts.

  • Mangroves as Coastal Bio-Shields

    Sundarbans serves as a natural storm surge barrier for Kolkata, linking regional geography directly with urban disaster management and resilient infrastructure strategies.

Expect a multi-statement question on Sundarbans Ramsar status, mangrove percentage share, and ecological threats for WBCS Prelims.

Linked PYQs · 3

Linked PYQs · 3

  • 2024WBCS_PRELIMSGS1

    On a per hectare basis which of the following forests will hold maximum amount of carbon?

  • 2019WBCS_PRELIMSGS1

    Sundarban is declared as 'World Heritage Site' for

  • 2021WBCS_PRELIMSGS1

    The Sundarban is declared as 'Ramsar site' in