India's heatwaves claimed 4,620 lives in four years, says Ministry of Earth Sciences
Heatwaves in the country are turning out to be particularly deadly with over 4,620 recorded deaths caused by the severe weather condition in the last four years.
New Delhi: Heatwaves in the country are turning out to be particularly deadly with over 4,620 recorded deaths caused by the severe weather condition in the last four years. Of that figure, a whopping 4,246 people died in Andhra Pradesh and Telangana alone. According to the Ministry of Earth Sciences, in 2016, nearly 1,600 people died due to erratic weather conditions, of which 557 casualties were due to severe heatwave.
The year 2015 witnessed 2,081 deaths due to severe heatwave while 549 people died in 2014. In 2013, the severe heatwave conditions killed 1,443 people, of which the unified Andhra Pradesh state registered 1,393 casualties. The figures, however, are larger across the country as causes other than the direct reasons like heat stroke and dehydration are seldom accounted for, said Dileep Mavlankar, Director of Gandhinagar-based Indian Institute of Public Health that has been working with the Ahmedabad Municipal Corporation on a heatwave action plan.
"For instance, dehydration also leads to respiratory and renal failure, especially for those who are prone to heart and kidney ailments. Infants and the elderly top the list in casualties," he said. "In 2010, Ahmedabad recorded 65 deaths due to heatwave, but in the same period, there were 800 more deaths," Malvalankar said. Since last year IMD has started issuing heatwave alerts. A heatwave is declared when the temperature crosses 45°Celsius.
If the temperature rises 4 to 5 degrees above normal, then the condition is termed as a 'heatwave'. If the variance is over 6 degrees above normal, then it is classified as a 'severe heatwave'. With global temperatures on the rise, the instances of heatwave are increasing. MoES figures reveal that there were 74 days of the evere heatwave on an average between 1961 and 1970. The figure declined to 34 between 1971-1980. Between 1981-1990 and 1991-2000, 45 and 48 severe heatwave days were recorded respectively.
However, there was a sharp increase in figures in 2001-2010 with the number of severe heatwave days peaking to 98. The last decade is one of the warmest ever recorded.
With every year in the current decade registering warmer climates, it may be fast racing towards becoming the warmest 10-year period. The IMD has declared 2016 as the warmest year ever recorded since 1901.
Global warming is the obvious reason behind the severe heatwave, said Laxman Singh Rathore, former Director General of the India Meteorological Department, but local factors also aggravate the situation. For instance, the case of Telangana, Andhra Pradesh and Odisha that have seen maximum deaths due to heatwave. "In summer season, there is an upper air anti-cyclone over Rajasthan and Gujarat. It sucks hot dry desert air which gets transported to Madhya Pradesh, Andhra Pradesh, Telangana
"Persistent advection of this hot dry air gives rise to heatwave conditions over these regions. Once this anti-cyclone moves to the Arabian sea, heatwave conditions subside," said A K Jaswal, a former scientist with the IMD who has published a research paper on this topic. The Centre as well as the states this year have come up
with an action plan to minimise deaths related to heat waves.
In a seminar last month, attended by representatives of several states and NGOs, stakeholders resolved to restrict the death figures to double digits. "Last year, states like Maharashtra, Odisha, Andhra Pradesh and Telangana came up with a strategy to minimise deaths. This year, we have added states like Uttar Pradesh, Bihar, Madhya Pradesh, Bihar, Jharkhand, Punjab, Delhi and Haryana and given them several Dos and Don'ts," said M Rajeevan, Secretary, Ministry of Earth Sciences.
The Haryana government has sent out an advisory through newspapers on how to take care onself during a heatwave. Rajeevan said, the states have been told to follow the
Ahmedabad pattern to reduce heatwave-related deaths. The Ahmedabad pattern comprises measures like sending out warnings to hospitals about heatwaves and what kind of patients they can expect. "This will help hospitals to stay alert and stock medicines accordingly. This will also help them minimise casualties," Rajeevan said.
Though there was increased rain intensity in the city and suburbs since morning, there was no report of any major water logging in low-lying areas like Hindmata, Matunga and Kurla
The Mumbai Police shared the video of the incident on its official social media handle along with the hashtag #AamhiDutyVarAhot.
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