The reality of living with extreme heat in India

This section discusses how India, one of the most vulnerable countries to climate change, experiences increasingly extreme and frequent heatwaves, with cities reaching peak temperatures of around 112°F. Dr. Gulrez Azhar describes how these heatwaves significantly affect populations, especially those without access to air conditioning—more than 94% of Indian households lack such cooling facilities. The discussion highlights the alarming number of heat-related deaths, the challenges in accurately tracking these fatalities due to systemic issues in health data collection, and the physiological limits of human adaptation to heat. The conversation underscores the urgent need for comprehensive data and robust health systems to mitigate the impacts of extreme heat.

This segment covers the systemic challenges in quantifying heat-related health impacts, primarily due to incomplete health data and reporting discrepancies in India. Dr. Azhar emphasizes innovative approaches such as using ambulance call data and novel methods like mobile apps to better understand and respond to heat-related health issues. The success of heat action plans in cities like Ahmedabad, which include community education, water supply improvements, and health technician training, demonstrates effective local responses. The discussion also touches on simple, cost-effective solutions such as changing work hours and improving housing design to reduce heat exposure.

Dr. Azhar busts common myths, such as the notion that only men are affected by heat due to outdoor work, revealing that women often suffer more because of indoor conditions—lack of toilets, smoky kitchens, and high heat inside poorly designed homes. She highlights how cultural practices, gender roles, and housing conditions exacerbate health risks for women, making them particularly vulnerable during heatwaves. This section underscores the importance of understanding social and cultural contexts in addressing heat vulnerabilities.

This part reflects on human ingenuity and resilience in the face of rising temperatures. Dr. Azhar shares hopeful stories of adaptation, such as awareness of heat risks leading to behavioral changes and community-led solutions. She stresses that despite the growing threat of hotter years, many affordable, simple interventions—like improved clothing, work schedule adjustments, and urban planning—can provide protection. However, she also warns of the broader global risks, including potential catastrophic events in regions like the Gulf, if infrastructure and power systems fail during extreme heat.