2023 GS3 Answer

Q. What is oil pollution? What are its impacts on the marine ecosystem? In what way is oil pollution particularly harmful for a country like India?

Question from UPSC Mains 2023 GS3 Paper

Model Answer: 

Oil Pollution: Impacts and Implications for India

Oil pollution refers to the contamination of marine environments by petroleum hydrocarbons. Major sources include:
• Accidental oil spills from tankers and offshore drilling
• Routine shipping operations (e.g., bilge cleaning)
• Industrial and urban runoff
• Natural seepage from underwater oil reserves

Impacts on Marine Ecosystems

Oil pollution severely disrupts marine ecosystems through:

a) Direct toxicity:
– Causes immediate mortality of fish, birds, and marine mammals
– Damages gills, leading to suffocation of aquatic organisms

b) Habitat destruction:
– Coats shorelines, destroying nesting sites for sea turtles and birds
– Smothers coral reefs, reducing biodiversity hotspots

c) Long-term ecological effects:
– Bioaccumulation of toxins in the food chain
– Reduced reproductive success in various species
– Alteration of marine food webs and ecosystem balance

Particular Harm to India

India’s vulnerability to oil pollution is heightened due to:

a) Extensive coastline: India’s 7,516 km coastline is exposed to major international shipping routes, increasing the risk of oil spills and chronic pollution.

b) Economic impacts: Oil pollution threatens the livelihoods of millions dependent on fishing and aquaculture, and damages coastal tourism.

c) Ecological sensitivity: Unique ecosystems like the Sundarbans mangroves and marine protected areas are at risk, endangering biodiversity and coastal protection.

d) Development challenges: Limited resources for advanced pollution monitoring and response systems, coupled with inadequate waste management infrastructure in coastal cities, exacerbate the problem.

e) Geopolitical concerns: Proximity to major oil-producing regions increases tanker traffic and spill risks, with potential for transboundary pollution affecting relations with neighboring countries.

Conclusion:
Oil pollution poses a significant threat to India’s marine environment, economy, and sustainable development. Addressing this issue requires a multi-faceted approach involving stricter regulations, improved response capabilities, and international cooperation to safeguard India’s valuable coastal and marine resources.

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