Climate attribution science: a useful tool to plan for extreme heat events

The document discusses the increasing frequency and magnitude of extreme heat events in India, highlighting the role of climate attribution science in identifying the human-induced causes of these events. It emphasizes that such science helps decision-makers create targeted heat action plans that account for vulnerability, exposure, and local factors like the urban heat island effect, air pollution, and humidity. The brief notes that while aerosols can temporarily lower peak temperatures, their reduction through clean energy policies may increase heat wave intensity. It advocates for coordinated government responses, early warning systems, and capacity building to protect marginalized populations, such as slum dwellers and outdoor workers, who are most at risk.

• Extreme heat events in India are increasing in frequency and magnitude, causing severe health issues like heat stroke and dehydration, particularly among marginalized urban communities. Between 1992 and 2015, the human death toll exceeded 22,500 people.
• Climate attribution science allows researchers to determine if specific heat waves are caused by human-induced climate change. For example, the 2015 heat events in Andhra Pradesh and Telangana were found to be twice as likely due to anthropogenic climate change.
• Local factors such as the 'urban heat island effect'—where metropolitan areas are warmer than rural surroundings due to human activity and lack of green space—increase the exposure and vulnerability of city residents to peak temperatures.
• Air pollution and aerosols (such as dust and smoke) can reflect sunlight and lower ground temperatures, but their reduction through the adoption of clean fuels and pollution standards may lead to an increase in the intensity and frequency of heat waves.
• Increased relative humidity, often linked to higher irrigation cover in northern and central India, can lower actual heat wave temperatures by using solar heat for evaporation, but it also masks the trend of rising pre-monsoon maximum temperatures and increases the health risk to humans.
• Effective heat action plans, such as those pioneered in Ahmedabad and Odisha, should integrate real-time attribution studies, early warnings from the Indian Meteorological Department, and coordinated inter-departmental efforts to protect high-risk groups like outdoor workers, children, and the elderly.

APA

Kapoor, A. (2017). Climate attribution science: a useful tool to plan for extreme heat events. Climate and Development Knowledge Network. https://cdkn.org/sites/default/files/files/CDKN_RRA_HeatWave_PB_Pr2Final_WEB.pdf

Chicago

Kapoor, Aditi. Climate attribution science: a useful tool to plan for extreme heat events. Climate and Development Knowledge Network, 2017. https://cdkn.org/sites/default/files/files/CDKN_RRA_HeatWave_PB_Pr2Final_WEB.pdf.

Wikipedia

{{cite report |last1=Kapoor |first1=Aditi |title=Climate attribution science: a useful tool to plan for extreme heat events |publisher=Climate and Development Knowledge Network |date=2017 |url=https://cdkn.org/sites/default/files/files/CDKN_RRA_HeatWave_PB_Pr2Final_WEB.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{kapoor2017climate, author = {Kapoor, Aditi}, title = {{Climate attribution science: a useful tool to plan for extreme heat events}}, institution = {Climate and Development Knowledge Network}, year = {2017}, url = {https://cdkn.org/sites/default/files/files/CDKN_RRA_HeatWave_PB_Pr2Final_WEB.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }