Express View on air pollution: El Nino, La Nina

Syllabus: GS-III

Subject: Environment, Ecology and Disaster Management

Topic: Pollution

Issue: Air Pollution’s and climate change

Linkage of climate change El Nino, La Nina to air pollution:

  • A new study links air pollution in Indian cities like Delhi and Mumbai to external factors such as El Niño, La Niña, and climate change.
  • Instead of generating any new source of pollution these factors, influence the distribution of pollutant by altering meteorological conditions.
  • The study attributes cleaner air in Delhi and dirtier air in Mumbai during the 2022 winter to a record-breaking La Niña event.
  • Climate change is expected to exacerbate the frequency and strength of such events, potentially intensifying their impact on air quality.
  • To effectively tackle air pollution, focus must remain on reducing emissions at their source, as temporary solutions are deemed ineffective.
  • The study suggests focusing on long-term strategies to reduce emissions instead of quick fixes such as artificial rain or odd-even.
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