360° UPSC Mains Analysis

What is the Samudra Manthan scheme all about? | Explained

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Flora & Fauna

Olive Ridley Turtle (Lepidochelys olivacea)
Status: Vulnerable
Threat: Protected under Schedule I of the Wildlife (Protection) Act, 1972; nesting sites along the Odisha coast (Mahanadi basin) and offshore migratory paths are highly vulnerable to oil spills, seismic noise, and marine pollution from drilling [1.3.1].
Dugong (Dugong dugon)
Status: Vulnerable
Threat: Protected under Schedule I of the Wildlife (Protection) Act, 1972; found in the Andaman and Nicobar Islands and Gulf of Mannar (near Cauvery basin); highly sensitive to seagrass degradation and underwater noise from offshore drilling.
Blue Whale (Balaenoptera musculus)
Status: Endangered
Threat: Protected under Schedule I of the Wildlife (Protection) Act, 1972; deepwater seismic surveys (airguns) cause severe acoustic trauma, disrupting their communication, navigation, and feeding patterns in deep ocean basins.
Hawksbill Turtle (Eretmochelys imbricata)
Status: Critically Endangered
Threat: Protected under Schedule I of the Wildlife (Protection) Act, 1972; nesting and foraging habitats in the Andaman and Nicobar Islands are highly vulnerable to oil spills, chemical pollution, and physical disruption from offshore drilling operations.

Ecology Impact

Deepwater and ultra-deepwater drilling in ecologically sensitive basins like Krishna-Godavari, Mahanadi, and the Andaman region poses severe risks of oil spills, underwater noise pollution, and habitat destruction. These activities require rigorous Environmental Impact Assessments (EIA) under the Environment (Protection) Act, 1986 and the EIA Notification, 2006. The Andaman region, in particular, hosts highly sensitive coral reefs and marine biodiversity that face risks from exploratory drilling and seismic surveys.

Science & Tech Angle

Deepwater and ultra-deepwater exploration relies on reflection seismology, where high-energy acoustic waves from airguns map subsurface geological formations beneath the seabed. Drilling at extreme depths requires advanced subsea engineering, including dynamic positioning systems for vessels, blowout preventers (BOPs) to withstand immense hydrostatic pressure, and remotely operated vehicles (ROVs) for deep-sea operations.

Climate Change Link

Expanding fossil fuel extraction directly conflicts with India's commitments under the Paris Agreement and its Nationally Determined Contributions (NDCs) to achieve net-zero emissions by 2070. Unlocking new deepwater hydrocarbon reserves locks in long-term carbon emissions and risks creating stranded assets in a decarbonizing global economy. This expansion also runs counter to the COP28 UAE Consensus calling for a transition away from fossil fuels.

Sustainable Development

The scheme presents a policy conflict between securing domestic energy access (SDG 7) and achieving climate action (SDG 13) and marine conservation (SDG 14: Life Below Water). While it aims to boost economic growth, a true green economy transition requires shifting capital from high-risk fossil fuel exploration to offshore renewable energy like marine wind and tidal power.

International Frameworks

Paris Agreement
India's commitment to reduce emission intensity and achieve net-zero emissions by 2070 is challenged by expanding fossil fuel extraction.
United Nations Convention on the Law of the Sea (UNCLOS)
Part XII mandates states to protect and preserve the marine environment, requiring strict environmental impact assessments for offshore drilling.
Convention on Biological Diversity (CBD)
Connects to the Kunming-Montreal Global Biodiversity Framework's Target 3 (protecting 30% of marine ecosystems by 2030), which could be compromised by expanding offshore industrial zones.
Convention on Migratory Species (CMS)
Protects migratory marine species (like Olive Ridley turtles and whales) from acoustic pollution and habitat disruption caused by seismic surveys and drilling [1.3.1].

Sources consulted

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