360° UPSC Mains Analysis

El Nino to persist through February 2027: What it means for India

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Flora & Fauna

Gharial (Gavialis gangeticus)
Status: Critically Endangered
Threat: Protected under Schedule I of the Wild Life (Protection) Act, 1972. Rising ambient and nest temperatures skew hatchling sex ratios towards females (temperature-dependent sex determination), while severe droughts shrink riverine habitats in the National Chambal Sanctuary.
Great Indian Bustard (Ardeotis nigriceps)
Status: Critically Endangered
Threat: Protected under Schedule I of the Wild Life (Protection) Act, 1972. Severe droughts in dry grassland habitats (e.g., Desert National Park, Rajasthan) reduce food availability (insects, seeds) and nesting success.
Wheat (Triticum aestivum)
Status: Not Evaluated
Threat: Terminal heat stress during reproductive and grain-filling stages due to shortening winters and rapid February-March warming, significantly reducing crop yield.

Ecology Impact

El Niño-induced rainfall deficits and extreme heat exacerbate drought conditions, leading to forest fires in fragile ecosystems like the Western Ghats. This threatens habitats protected under the Wild Life (Protection) Act, 1972 (amended in 2022), and undermines the state's duty under Article 48A of the Constitution of India to protect and improve the environment.

Science & Tech Angle

The underlying science involves the El Niño-Southern Oscillation (ENSO) cycle, where weakened trade winds allow warm water to push eastwards toward the Americas, disrupting the Walker Circulation. In India, this suppresses the monsoon trough and alters the Indian Ocean Dipole (IOD) interaction, leading to deficient precipitation. Advanced satellite meteorology and coupled ocean-atmosphere models are used by the IMD to forecast these anomalies.

Climate Change Link

The compounding effect of El Niño and anthropogenic climate change accelerates global warming, threatening India's updated Nationally Determined Contributions (NDCs) under the Paris Agreement, which aim to reduce emission intensity of GDP by 45% by 2030 from 2005 levels. Extreme weather events like the hottest August since 1901 directly challenge India's climate adaptation strategies.

Sustainable Development

The crisis directly impacts SDG 2 (Zero Hunger) by threatening Rabi crop yields through terminal heat stress, and SDG 6 (Clean Water and Sanitation) due to severe rainfall deficits. It also hinders progress on SDG 13 (Climate Action) and SDG 15 (Life on Land) by accelerating land degradation and biodiversity loss.

International Frameworks

United Nations Framework Convention on Climate Change (UNFCCC)
Provides the global platform for negotiating climate adaptation and mitigation strategies, under which India submits its Nationally Determined Contributions (NDCs) to build resilience against ENSO-induced extreme weather.
United Nations Convention to Combat Desertification (UNCCD)
Addresses land degradation and drought, which are severely exacerbated by El Niño-induced rainfall deficits, aligning with India's target to restore 26 million hectares of degraded land by 2030.
Convention on Wetlands of International Importance (Ramsar Convention)
Protects critical wetland ecosystems (Ramsar sites) in India that face severe ecological degradation and drying up due to prolonged El Niño-induced droughts.

Sources consulted

AI-generated study aid. Grounded in web research, but verify critical facts against official sources before your exam.

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