Landowners challenged the Chennai Metropolitan Development Authority (CMDA) in the National Green Tribunal (NGT) over development restrictions in the Pallikaranai Marshland's 'Influence Zone'

Why in news

Landowners challenged the Chennai Metropolitan Development Authority (CMDA) in the National Green Tribunal (NGT) over development restrictions in the Pallikaranai Marshland's 'Influence Zone'.

Background

Pallikaranai Marshland is a designated Ramsar Site in Chennai, Tamil Nadu, vital for biodiversity and flood mitigation. The CMDA's Second Master Plan includes development zones that conflict with the wetland's ecological boundaries.

Facts for Prelims

• PlacePallikaranai Marshland: A Ramsar Site located in Chennai, Tamil Nadu.
• BodyNational Green Tribunal (NGT): A specialized body for adjudication of environmental disputes in India.
• BodyChennai Metropolitan Development Authority (CMDA): The planning and development body for the Chennai metropolitan area.

For Mains

Q. Discuss the conflict between urban infrastructure expansion and the preservation of urban wetlands in India. How can regulatory frameworks balance development with ecological conservation?

Dimensions to cover in your answer

• Regulatory ambiguity: Lack of clearly defined 'Influence Zone' boundaries leading to litigation and unauthorized encroachment.
• Ecological risk: Degradation of flood-mitigation services and biodiversity loss due to encroachment in Ramsar-listed wetlands.
• Jurisdictional friction: Conflict between urban planning bodies (CMDA) and environmental oversight mandates of the NGT.

Keywords: Ramsar Convention · Urban Wetlands · Flood Mitigation · Ecological Integrity · Sustainable Urban Planning

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