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In 2012-2021, monsoon temperatures rose by 0.4 C above normal summer temperatures compared to 1951-1980.
Monsoons often mean a break from the heat of the summer months but rising temperatures during the monsoon months – June to September – see an increase, according to a report by the Center for Science and Environment.
Throughout India, the average temperature during the monsoon season (June, July, August and September) is now 0.3 ° C above normal summer temperatures (March, April, May) compared with 1951-80. Over the past decade, 2012-2021, these disturbances have risen to 0.4 C.
India’s average temperature rose 0.62 C from 1901-2020, according to records from the Indian Meteorological Department. However, to differentiate this rise, CSE analysis shows, it has been translated into summer temperatures rising slightly above the monsoon but even post-monsoon (October-December) and winter temperatures (January and February) rising by 0.79 C and -0.58 C respectively. .
This year there has been a record pre-rainy temperature in North and West India mainly due to the lack of rain.
The average daily temperature for March and April in Chandigarh, Delhi, Haryana, Himachal Pradesh, Jammu & Kashmir, Ladakh, Punjab, Rajasthan, Uttar Pradesh and Uttarakhand – according to IMD categories, was about 4 ° C above normal (compared to normal). its foundation 1981-2010). This is almost double that of the crisis seen throughout India, and it is true even at moderate daily temperatures, daily averages and surface temperatures, notes the CSE. Temperatures close to normal in May.
Although these were the hottest conditions, CSE authors say, they are not immune to rising temperatures in some parts of the world.
The average daily temperature for the northwestern provinces in March was 30.7 ° C, while the average Indian was 33.1 ° C or 2.4 ° C temperature). The average daily low temperature showed even greater difference (4.9 ° C).
Central India (Chhattisgarh, Dadra & Nagar Haveli, Daman & Diu, Goa, Gujarat, Madhya Pradesh, Maharashtra and Odisha) and the southern hemisphere (Andaman & Nicobar, Andhra Pradesh, Karnataka, Kerala, Lakshadweep, Puducherry, Tamil Nadu and and Telangana) had higher temperatures compared to the northwest during the pre-heavy or summer rainy season. The average size of central India was 2-7 ° C above, while the average size of the southern Indian peninsula was 4-10 ° C above temperatures in northwestern India.
Impacts on public health
These numbers have contributed to the deaths of people due to the heater. From 2015 – 2020, 2,137 people have been reported dead in the heat of the United States in the northwest but the southern hemisphere has reported 2,444 deaths due to extreme heat, with Andhra Pradesh alone accounting for more than half of all casualties. . Delhi reported only one death at a time. Most deaths have been reported among men aged 30-60 years, who are generally considered to be at high risk for temperature disorders. “Understanding the public health impact of climate change such as the heat wave is still weak in India,” he emphasized.
The years 2016 and 2017 reported twice the number of catastrophic heat wave events compared to 2015, but the reported deaths caused were less than a quarter of the 2015 toll.
The effect of the tropical island, the phenomenon in which cities due to the concrete area and the densely populated population are generally hotter than rural areas also contributed to heat stress.
The CSE study analyzed temperature and humidity data collected by a real-time air monitoring network and found significant temperature variations within cities. In terms of total air temperature, Hyderabad with a variation of 7.1 ° C had the most prominent tropical islands, while Kolkata with only 1.3 ° C had relatively small islands. Delhi had a variation of 6.2 ° C; Mumbai was 5.5 ° C.
“The preparedness of the policy to reduce global warming due to climate change is almost non-existent in India. In addition to heat action systems, rising air temperatures, emissions from the earth, durability, built-in thermal structures, waste disposal from industrial processes and air conditioners, and erosion of tropical forests, urban vegetation and water resources will cripple public health risks. This requires urgent reduction of time ”Anumita Roychowdhury Executive Director, Research and Law, CSE
“This is a very disturbing trend as the preparedness of a policy to reduce global warming due to climate change is almost non-existent in India. In addition to heat action systems, rising air temperatures, emissions from the earth, durability, built-in thermal structures, waste disposal from industrial processes and air conditioners, and erosion of tropical forests, urban vegetation and water resources will cripple public health risks. This requires urgent reduction of time, ”said Anumita Roychowdhury, executive director of research and advocacy, CSE.
