An unprecedented triple-dip La-Nina event, extended by climate change, triggered a peculiar trend in the 2022-23 winter season where air quality improved in north India while peninsular India recorded an increase in pollution levels, according to a new study released on February 18.
The three consecutive years of La Niña conditions (2020-23) — a rare “triple-dip” phenomenon — had widespread impacts on the ocean and climate across the globe.
The study by a team of scientists led by Gufran Beig, Chair Professor, National Institute of Advanced Studies, emphasised that besides local emissions, rapidly changing climate is a significant factor affecting air quality.
