Executive Summary:
The Ministry of Earth Sciences addresses increasing heat wave frequency in India. The government has taken steps to minimize loss of life and property through enhanced monitoring and early warning systems implemented by the India Meteorological Department (IMD). While there is no current proposal to formally classify heat waves as disasters eligible for National Disaster Response Fund (NDRF)/State Disaster Response Fund (SDRF) assistance, states can utilize a portion of their SDRF allocation for immediate relief. The government aims to equip disaster management authorities through information dissemination and implementation of Heat Action Plans (HAPs).
Key Points / Main Content:
* **Heat Wave Trends and Climate Change:**
* Heat wave frequency is increasing in various parts of India.
* This increase reflects the broader issue of global climate change.
* India is promoting international collaboration to reduce carbon emissions, transition to renewable energy, and implement sustainable practices.
* **Government Initiatives:**
* The IMD, with research centers, enhances monitoring and early warning systems.
* Seasonal/monthly outlooks and extended-range forecasts are issued.
* Early warning information is disseminated through social media.
* District-wise heatwave vulnerability Atlas and hot weather hazard analysis maps are available.
* National and State-level heatwave preparedness meetings are conducted.
* **Heat Wave Impact Assessment:**
* Heat waves can cause physiological stress, leading to dehydration, cramps, exhaustion, and heatstroke.
* There is an increase in acute gastroenteritis, food poisoning, anxiety, and behavioral changes.
* Agricultural laborers, coastal community dwellers, and people living below the poverty line are most affected.
* **Disaster Relief Funds:**
* Heat waves are not currently notified as disasters eligible for NDRF/SDRF assistance.
* States can use up to 10% of their annual SDRF allocation for immediate relief related to local disasters, including heat waves, subject to conditions.
* **Disaster Management Preparedness:**
* Weather information is provided to Union Government ministries, State Governments, and local bodies.
* HAPs have been implemented in 23 vulnerable states.
* The Common Alert Protocol (CAP) is being implemented by NDMA to disseminate warnings.
* A web-based Climate Hazard Vulnerability Atlas of India is available.
* The IMD provides weather information through mass media, internet, apps, and social media.
Impact Analysis:
National Disaster Management Authority (NDMA):
* Impact: Jointly implements Heat Action Plans with State Governments and implements the Common Alert Protocol for disseminating warnings.
* Action Required: Continue collaborating with State Governments on HAPs and ensure effective implementation of CAP.
State Governments:
* Impact: Responsible for planning and action to tackle extreme weather events. Can utilize up to 10% of SDRF for heat wave relief.
* Action Required: Utilize the district-wise heatwave vulnerability Atlas, hot weather hazard analysis maps, and the Climate Hazard Vulnerability Atlas for planning and action. Implement and review Heat Action Plans.
India Meteorological Department (IMD):
* Impact: Responsible for monitoring, forecasting, and disseminating heat wave information.
* Action Required: Continue to enhance monitoring and early warning systems, disseminate information through various channels, and update the Climate Hazard Vulnerability Atlas.
General Public:
* Impact: Vulnerable to heat-related illnesses and mortality during heat waves.
* Action Required: Stay informed about heat wave forecasts and warnings through various media channels, take necessary precautions to avoid heat exposure, and be aware of heat-related symptoms.
Key Entities Referenced
India Meteorological Department (IMD): The national meteorological service of India, responsible for weather forecasting and monitoring, including heatwave warnings.
National Disaster Management Authority (NDMA): The apex body for disaster management in India, responsible for coordinating and implementing disaster management policies and plans, including heat action plans.
National Disaster Response Fund (NDRF): A fund established by the Government of India to meet the expenses for emergency response, relief, and rehabilitation due to disasters.
State Disaster Response Fund (SDRF): A fund established by each State Government in India to meet the expenses for emergency response, relief, and rehabilitation due to disasters at the state level.
Heat Action Plans (HAPs): A set of measures implemented in heatwave-prone states in India to reduce the impact of heat waves on human health.
Ministry of Earth Sciences: The Indian government ministry responsible for matters relating to earth sciences.
International Solar Alliance: An international organisation that promotes the use of solar energy.
Coalition for DisasterResilient Infrastructure: A global partnership of national governments, UN agencies, multilateral development banks and financing mechanisms, the private sector, and academic institutions, that aims to promote disaster-resilient infrastructure.
GOVERNMENT OF INDIA
MINISTRY OF EARTH SCIENCES
LOK SABHA
UNSTARRED QUESTION NO. 495
TO BE ANSWERED ON WEDNESDAY, 23RD JULY, 2025
HEAT WAVES
†495. SHRI SANJAY UTTAMRAO DESHMUKH:
SHRI ARVIND GANPAT SAWANT:
Will the Minister of EARTH SCIENCES be pleased to state:
(a) whether the frequency of heat waves is increasing in various regions of the country;
(b) if so, the urgent steps taken by the Government to prevent the heat wave and save the
people;
(c) whether there is any proposal to address the increasing frequency/intensity of heat waves
in the country and if so, the details thereof and if not, the reasons therefor;
(d) whether the Government has assessed the severity of disaster caused by heat waves, if so,
the details thereof;
(e) whether there is any proposal to notify the disaster caused by heat waves as a disaster
entitled to adequate funds for emergency response/relief/rehabilitation efforts from both
the National Disaster Response Fund and the State Disaster Response Fund;
(f) if so, the details thereof;
(g) whether the Union Government proposes to equip disaster management authorities to
address challenges caused by heat waves; and
(h) if so, the details thereof?
ANSWER
THE MINISTER OF STATE (INDEPENDENT CHARGE) FOR
MINISTRY OF SCIENCE AND TECHNOLOGY
AND EARTH SCIENCES
(DR. JITENDRA SINGH)
(a) Yes. Recent studies have shown that frequency of the Heat Waves is increasing over
various parts of the country.
(b) The India Meteorological Department (IMD), in collaboration with various research
centers across the country, has undertaken several initiatives to enhance monitoring and
early warning systems. These efforts have significantly contributed to minimizing the
loss of life and property during extreme weather events, including heatwaves. These
include:
Issuing seasonal and monthly outlooks, followed by extended-range forecasts of
temperature and heatwave conditions. The early warning and forecast information
are also disseminated through various social media platforms for timely public
outreach.
District-wise heatwave vulnerability Atlas over India to help State Government
authorities and disaster management agencies in planning. The hot weather hazard analysis map of India incorporates daily data on
temperature, wind patterns, and humidity levels.
A series of National and State-level heatwave preparedness meetings are conducted
much before the start of the summer season, with regular review meetings from
time to time during the season.
(c) Due to climate change, the annual temperature is increasing globally, and the impact of
this is reflected in the rising frequency and intensity of heat waves in various parts of the
globe, including India. Furthermore, the Ministry has recently published the Climate
Change Assessment Report over the Indian region, which is available at
https://link.springer.com/book/10.1007/978-981-15-4327-2. The increasing frequency
and intensity of heat waves are clear indicators of the broader issue of global climate
change. Addressing the root causes of global climate change is essential to mitigating the
impact of heat waves. This involves international cooperation to reduce carbon
emissions, transition to renewable energy sources, and implement sustainable practices
across all sectors. Towards this, India has taken a proactive role in fostering international
collaborations through initiatives such as the International Solar Alliance and the
Coalition for Disaster-Resilient Infrastructure. India is committed to pursuing low-carbon
strategies for development and is actively pursuing them, as per national circumstances.
(d) Yes. Abnormal temperature events can impose severe physiological stress on the human
body as the body operates best within a fairly normal temperature range. There is a
marked relationship between human mortality and thermal stress. During unusually hot
episodes, deaths from different causes can rise significantly, with the elderly at greater
risk than others.
Four common heat health impacts resulting from excessive exposure to heat waves
include dehydration, cramps, exhaustion, and heatstroke. It is also learnt that there is a
sharp rise in the number of cases of acute gastroenteritis and food poisoning due to the
spoilage of food and the reduction of its shelf life due to high temperatures. There is also
a rise in the number of cases of anxiety, palpitations, nervousness, and behavioural
change linked to extreme temperature rise. The occupational profile of most of the
victims was ascertained as agricultural labourers, coastal community dwellers, and people
living below the poverty line category, with mostly outdoor occupations.
(e)-(f) Currently, the notified list of disasters eligible for National Disaster Response Fund
(NDRF)/State Disaster Response Fund (SDRF) assistance includes 12 disasters, namely
cyclones, droughts, earthquakes, fires, floods, tsunamis, hailstorms, landslides,
avalanches, cloud burst, pest attack, and frost & cold wave. The issue of the inclusion of
more calamities in the existing notified list of calamities was considered by the 15th
Finance Commission. The Commission, in para 8.143 of its report, had observed that the
list of notified disasters eligible for funding from the State Disaster Response Mitigation
Fund (SDRMF) and National Disaster Response Mitigation Fund (NDRMF) covers the
needs of the State to a large extent and thus did not find much merit in the request to
expand its scope.However, a State Government can use up to 10% of the annual fund allocation of the
SDRF, subject to the fulfillment of certain prescribed conditions and norms, to provide
immediate relief to the victims of natural disasters that they consider to be ‘disasters’
within the local context in the State and which are not included in the centrally notified
list of natural disasters.
(g)-(h) The weather information is provided to all the stakeholders, including the ministries of
the Union Government, State Governments, and local Government bodies. Further, Heat
Action Plans (HAPs) have been implemented in 23 states that are particularly vulnerable
to heatwave conditions. These plans are a joint initiative by the National Disaster
Management Authority (NDMA) in collaboration with the respective State Governments.
The Common Alert Protocol (CAP), developed by the NDMA, is also being implemented
to disseminate warnings and timely alerts by the IMD.
IMD has also brought out a web-based online “Climate Hazard & Vulnerability Atlas of
India” prepared for the thirteen most hazardous meteorological events, which cause
extensive damage and economic, human, and animal losses. The same can be accessed at
https://imdpune.gov.in/hazardatlas/abouthazard.html. This atlas will help State
Government authorities and disaster management agencies identify the hotspots and plan
and take appropriate action to tackle extreme weather events. This product is helpful in
building Climate Change resilient infrastructure. Further, the India Meteorological
Department is making efforts to provide weather information to the public through
various platforms:
Mass Media: Radio/TV, Newspaper network (AM, FM, Community Radio, Private
TV), Prasar Bharati, and private broadcasters.
Weekly & Daily Weather Video.
Internet (email), FTP.
Public Website (mausam.imd.gov.in).
IMD Apps: Mausam/Meghdoot/DAMINI/RAIN ALARM.
Social Media: Facebook, X, Instagram, BLOG.
i. X: https://twitter.com/Indiametdept
ii. Facebook: https://www.facebook.com/India.Meteorological.Department/
iii. Blog: https://imdweather1875.wordpress.com/
iv. Instagram: https://www.instagram.com/mausam_nwfc
v. YouTube:
https://www.youtube.com/channel/UC_qxTReoq07UVARm87CuyQw
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