‘Super El Niño’ projected to cause 15,800 additional heat deaths in India, says report

Climatology & Disaster Management · 24 September 2026 · Based on The Hindu (original report)

Worth reading — 1 past UPSC question on this theme (Prelims GS-1 2017).

2-minute summary

A report by the Climate Impact Lab warns that the ongoing 'Super El Niño' is projected to cause approximately 15,800 additional heat-related deaths in India between September 2026 and February 2027. Globally, the event is expected to claim 451,000 lives in its first six months, disproportionately affecting tropical regions like the Sahel, Brazil, and Southeast Asia. Characterized by equatorial Pacific sea surface temperatures rising more than 3°C above normal, this Super El Niño acts as a 'postcard from our future,' simulating temperatures expected from baseline climate change 20 years from now. In India, the phenomenon has already suppressed the southwest monsoon, resulting in a 15% national rainfall deficit. This dry spell has triggered an energy crisis, with surging cooling demands leaving nearly 40% of India's coal-fired power plants with critically low fuel stocks. The findings highlight an urgent need for immediate, localized investments in climate adaptation and heat-resilient public health infrastructure.

Why it's in the news

The Climate Impact Lab released a report projecting 15,800 additional heat-related deaths in India due to the current 'Super El Niño' event, drawing urgent attention to the intersection of global climate anomalies, public health vulnerabilities, and energy grid stress.

Background and context

The El Niño-Southern Oscillation (ENSO) is a recurring climate pattern involving changes in the temperature of waters in the central and eastern tropical Pacific Ocean. El Niño, the warm phase, weakens the trade winds, causing warm water to pile up along the equator and shift global atmospheric circulation. For India, El Niño is historically associated with weakened southwest monsoons, agricultural droughts, and elevated summer temperatures. A 'Super El Niño' is an informal term for exceptionally strong events where sea surface temperatures exceed 3°C above average. Past strong events (e.g., 1997-98, 2015-16) caused severe global disruptions. As global baseline temperatures rise due to anthropogenic climate change, these natural anomalies become increasingly lethal, compounding heat stress, reducing labor productivity, and straining critical infrastructure like power grids due to surging cooling demands.

Constitutional provisions

• Article 21 — The Right to Life has been judicially interpreted by the Supreme Court to include the right to a clean, healthy, and sustainable environment, placing an obligation on the state to mitigate extreme climate risks.
• Article 47 — Directs the State to regard the raising of the level of nutrition and the standard of living of its people and the improvement of public health as among its primary duties.

Committees and reports

• National Action Plan on Climate Change (NAPCC) — Establishes eight national missions, including the National Mission on Sustainable Habitat and National Water Mission, which are critical to long-term heat and drought adaptation.
• NDMA Guidelines on Management of Heat Wave — Provides a comprehensive national framework for states to formulate local Heat Action Plans (HAPs), focusing on early warnings, medical preparedness, and public awareness.

Government schemes

• National Programme on Climate Change and Human Health (NPCCHH) — Aims to build capacity of healthcare systems to prevent, detect, and manage climate-sensitive illnesses, with a specific focus on heat-related illnesses and mortality tracking.
• National Disaster Management Authority (NDMA) Heat Action Plans — Facilitates state and city-level administrative frameworks to implement cool roofs, adjust labor hours, and establish drinking water stations during extreme heat events.

International organisations

• World Meteorological Organization (WMO) — Monitors global meteorological data, issues authoritative updates on ENSO cycles, and leads the 'Early Warnings for All' initiative.
• Climate Impact Lab — A collaborative consortium of climate scientists, economists, and data scientists mapping the real-world human and economic costs of climate change.

Previous UPSC questions on this theme

• Prelims GS-1 2017 — With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct? 1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean. 2. An IOD phenomenon can influence an El Nino's impact on the monsoon. (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

Mains practice: Analyze the socio-economic and public health implications of a 'Super El Niño' on India. Suggest structural policy reforms to transition from reactive climate response to proactive adaptation.

The projection of 15,800 additional heat-related deaths in India by the Climate Impact Lab underscores the severe threat posed by 'Super El Niño' events. Characterized by sea surface temperature anomalies exceeding 3°C in the eastern equatorial Pacific, these events amplify the baseline warming of climate change, acting as a precursor to future climate realities.

### Socio-Economic and Public Health Implications

• **Public Health Crisis:** Extreme heat directly causes heat exhaustion, heat strokes, and exacerbates cardiovascular and respiratory illnesses. Vulnerable demographics—such as the elderly, infants, and outdoor laborers—bear a disproportionate burden.

• **Agricultural Distress:** El Niño suppresses the southwest monsoon, leading to deficient rainfall (such as the 15% national deficit in 2026). This triggers crop failures, groundwater depletion, and food inflation.

• **Energy Grid Vulnerability:** Surging temperatures drive peak electricity demand for cooling. This strains energy infrastructure, as evidenced by nearly 40% of India's coal-fired plants reporting critically low fuel stocks during high-demand periods.

• **Economic Productivity Loss:** Outdoor sectors like agriculture and construction suffer severe labor productivity losses, directly impacting the livelihoods of informal workers and overall GDP.

### Structural Policy Reforms for Proactive Adaptation

• **Localizing Heat Action Plans (HAPs):** HAPs must transition from city-wide guidelines to ward-level micro-plans, incorporating localized 'wet-bulb' temperature thresholds rather than dry-bulb temperatures alone.

• **Climate-Resilient Urban Planning:** Promote passive cooling technologies, mandate 'cool roofs' in building bye-laws, and expand urban forestry (e.g., Miyawaki forests) to counter the Urban Heat Island (UHI) effect.

• **Strengthening Health Infrastructure:** Equip primary health centers with dedicated heat-stroke units, ensure uninterrupted power supply to cold chains for essential medicines, and train community health workers (ASHAs) in early symptom detection.

• **Social Security for Outdoor Labor:** Legally mandate occupational shifts in working hours during peak heat periods, paired with compensatory direct benefit transfers (DBTs) to offset wage losses.

**Conclusion:**

A Super El Niño is a stark warning of our ecological future. India must shift its paradigm from emergency disaster response to long-term, climate-resilient development, integrating heat-mitigation directly into national economic and urban planning.

Prelims practice questions

Q1. With reference to the El Niño Southern Oscillation (ENSO), consider the following statements: 1. During an El Niño event, the trade winds blow strongly from east to west across the equatorial Pacific. 2. A 'Super El Niño' is an informal term used when sea surface temperatures in the eastern equatorial Pacific rise significantly above normal. 3. El Niño is historically associated with a weaker southwest monsoon but can correlate with a stronger northeast monsoon in southern India. Which of the statements given above are correct?

1. 1 and 2 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

Answer: B. Statement 1 is incorrect: During El Niño, the trade winds weaken or even reverse, allowing warm water to slide back eastwards toward the South American coast. Statement 2 is correct: 'Super El Niño' is an informal term used for exceptionally strong El Niño conditions (typically >3°C above normal). Statement 3 is correct: While El Niño suppresses the southwest monsoon, it is often associated with an enhanced northeast monsoon over southern India (particularly Tamil Nadu).

Q2. Which of the following ministries is responsible for implementing the 'National Programme on Climate Change and Human Health' (NPCCHH)?

1. Ministry of Science and Technology
2. Ministry of Earth Sciences
3. Ministry of Environment, Forest and Climate Change
4. Ministry of Health and Family Welfare

Answer: D. The National Programme on Climate Change and Human Health (NPCCHH) is implemented by the Ministry of Health and Family Welfare to address health vulnerabilities and build healthcare capacity against climate-sensitive diseases.

Q3. Consider the following statements regarding the impact of extreme heat waves on energy infrastructure: 1. Increased ambient temperatures reduce the transmission efficiency of power lines. 2. High cooling demands during heatwaves can indirectly lead to critical fuel shortages at thermal power plants due to supply chain strain. 3. Hydroelectric power generation typically peaks during El Niño-induced heatwaves due to rapid glacial melt. Which of the statements given above is/are correct?

1. 1 and 2 only
2. 2 only
3. 2 and 3 only
4. 1, 2 and 3

Answer: A. Statement 1 is correct: High temperatures increase the electrical resistance of power lines, reducing transmission efficiency. Statement 2 is correct: Surging electricity demand for cooling strains the grid and rapidly depletes coal reserves, leading to critical fuel shortages at thermal plants. Statement 3 is incorrect: El Niño suppresses monsoon rainfall, leading to lower reservoir levels, which reduces overall hydroelectric power generation capacity rather than peaking it.

Revision flashcards

• What is a 'Super El Niño'? An informal term for exceptionally strong El Niño conditions, characterized by sea surface temperatures in the eastern equatorial Pacific rising more than 3°C above normal.
• How does El Niño affect India's dual monsoons differently? It typically suppresses the Southwest Monsoon (June-Sept), causing deficits, but is often associated with a stronger Northeast Monsoon (Oct-Dec) in Southern India.
• What is 'Wet-Bul Temperature' and why is it a critical threshold? It is the lowest temperature to which air can be cooled by water evaporation. A wet-bulb temperature of 35°C is the absolute limit of human tolerance; beyond this, the body cannot cool itself through sweat, leading to fatal heat stroke.
• Which Indian city launched the country's first Heat Action Plan (HAP)? Ahmedabad, Gujarat, in 2013, following a devastating heatwave in 2010 that served as a blueprint for other states.
• What is the primary objective of the NPCCHH? The National Programme on Climate Change and Human Health aims to reduce morbidity and mortality associated with climate change by strengthening health systems, raising awareness, and monitoring climate-sensitive health outcomes.