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Climate Change

South Asia Heatwave Of 2022 Most Intense In Last 70 Years: Study

Exceptional heating with more than 3.9 degrees Celsius rise in maximum temperature was experienced in South Asian countries

South Asia Heatwave Of 2022 Most Intense In Last 70 Years: Study
Heatwaves are expected to increase in the near future, enhancing heat accumulation in the region and threatening food, water and energy security in the region

New Delhi: The 2022 heatwave was unprecedented and the most intense in the last 70 years, severely affecting millions of people in South Asia, according to new research from India. Such heatwaves are expected to increase in the near future, enhancing heat accumulation in the region and threatening food, water and energy security in the region, the study from institutes including IIT-Gandhinagar and IIT-Jodhpur, said. South Asia faced five continuous heatwave spells that lasted about 35 days during late February and April 2022, affecting a large part of the region.

The heatwave lasted for a longer duration and had more spells than the historical heatwave events, compared to the historical heatwave events during 1950-2021, the study published in Environmental Research Letters said.

Also Read: Kerala, Puducherry Recorded Worst Climate Shift Index Levels From June To August: Study

Exceptional heating with more than 3.9 degrees Celsius rise in maximum temperature was experienced by majority region of South Asia, which includes countries such as Afghanistan, Pakistan, Bhutan, Nepal and Sri Lanka, along with India, the study found after analysing observational datasets from National Oceanic and Atmospheric Administration, US, and European Centre for Medium-Range Weather Forecasts Reanalysis version 5 (ERA5).

The study projected an increase in frequency of mega heatwave, more severe than that of 2022, in a warming planet under all types of emissions scenario.

Deficits in soil moisture was observed over Pakistan due to an intense prolonged temperature anomaly during March and April 2022, causing several wildfires in the region, the study found after analysing satellite-based soil moisture and normalised difference vegetation index (NDVI) for the period 1982-2022.

Also Read: United Nations Chief Heat Officer Says Warming Cities Pose Potential To Be Major Killers

The heatwave spells also negatively impacted the vegetation and crop yield in Punjab and Haryana, primary food-producing states in the region, the study said.

The study projects 2030 to be the year when mega heatwaves start to emerge under all types of emissions scenarios.

The study findings could be used to develop a more resilient system for energy, water, and food availability in the region for addressing the severe challenges posed by such intense and heatwaves in the future warming climate, it said.

Also Read: Lowest Emission Nations Hit Hardest By Unprecedented Heat In June-August Period: Study

(This story has not been edited by NDTV staff and is published from a syndicated feed.)

NDTV – Dettol have been working towards a clean and healthy India since 2014 via the Banega Swachh India initiative, which is helmed by Campaign Ambassador Amitabh Bachchan. The campaign aims to highlight the inter-dependency of humans and the environment, and of humans on one another with the focus on One Health, One Planet, One Future – Leaving No One Behind. It stresses on the need to take care of, and consider, everyone’s health in India – especially vulnerable communities – theLGBTQ population,indigenous people, India’s different tribes, ethnic and linguistic minorities, people with disabilities, migrants, geographically remote populations, gender and sexual minorities. In wake of the currentCOVID-19 pandemic, the need for WASH (Water,SanitationandHygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign will continue to raise awareness on the same along with focussing on the importance of nutrition and healthcare for women and children, fightmalnutrition, mental wellbeing, self care, science and health,adolescent health & gender awareness. Along with the health of people, the campaign has realised the need to also take care of the health of the eco-system. Our environment is fragile due to human activity, which is not only over-exploiting available resources, but also generating immense pollution as a result of using and extracting those resources. The imbalance has also led to immense biodiversity loss that has caused one of the biggest threats to human survival – climate change. It has now been described as a “code red for humanity.” The campaign will continue to cover issues likeair pollution,waste management,plastic ban,manual scavengingand sanitation workers andmenstrual hygiene. Banega Swasth India will also be taking forward the dream of Swasth Bharat, the campaign feels that only a Swachh or clean India wheretoiletsare used andopen defecation free (ODF)status achieved as part of the Swachh Bharat Abhiyan launched byPrime Minister Narendra Modiin 2014, can eradicate diseases like diahorrea and the country can become a Swasth or healthy India.

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