Climate Impact Lab report projects more than 451,000 Heat Deaths during first nine months of El Nino | Current Affairs | Vision IAS

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In Summary

  • A "Super El Niño" event, projected to increase global land temperatures by 1.2°C, is expected to cause over 15,800 additional deaths in India.
  • El Niño, the warm phase of ENSO, occurs every 2-7 years, characterized by weakened trade winds and warm Pacific temperatures, peaking between November and February.
  • Impacts include increased rainfall in some regions, drought in others, intensified marine heat waves, and more severe extreme weather events like storms and floods.

In Summary

The report projects that these El Nino deaths will be concentrated overwhelmingly in the Global South with 15,800 more deaths projected in India. 

  • Scientists project that global land temperatures will be 1.2°C above normal in the coming months due in large part to the current “Super El Niño” that began in June 2026.

Super El Nino

  • Super El Nino is an informal term generally used for exceptionally strong El Niño conditions.
  • El Niño is the warm phase of the naturally occurring El Niño-Southern Oscillation cycle (ENSO) and is characterized by unusually warm ocean surface temperatures in the central and eastern Pacific. 
    • El Nino happens when easterly trade winds become weaker. 
  • Frequency: It typically occurs every two to seven years and lasts around nine to twelve months.
  • Duration: El Niño generally begins developing between March and June and reaches its peak intensity between November and February.

Impact of Super El Nino

  • Global Temperature: El Nino has warming effect on global climate. 
  • Rainfall: Associated with increased rainfall and flooding in parts of South America, East Africa, and the southern United States; drought conditions in eastern and northern Australia, Indonesia, southern Africa, and parts of South Asia.
  • Ocean: El Nino can intensify marine heat waves, damaging seagrass meadows and kelp forests, altering distribution of plankton and fish populations. 
  • Extreme Weather Events: Super El Nino can lead to more severe storms, forest fires, flooding and droughts. 
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RELATED TERMS

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Global South

A term used to refer to countries in the world generally considered to be less economically developed, often comprising countries in Africa, Latin America, and Asia.

El Niño-Southern Oscillation (ENSO)

A naturally occurring climate pattern involving fluctuations in sea surface temperature and atmospheric pressure across the equatorial Pacific Ocean, which has significant impacts on global weather patterns. It has two main phases: El Niño (warm) and La Niña (cool).

El Nino

The warm phase of the El Nino Southern Oscillation (ENSO). It occurs when trade winds weaken, allowing warm ocean water to shift eastward towards South America, typically impacting global weather patterns with a warming effect.

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