Editorial 2: ​Focus on heat-resilience despite the monsoon

Context               

As climate extremes intensify, the focus must transition from reactive emergency care to preventive, equity-rooted public health.

Introduction

At a national conference on climate and health titled ‘India 2047: Building a Climate-Resilient Future’, a trade union leader highlighted the lived experiences of garment workers in sweltering factories, while a climate modeller discussed wet-bulb temperatures — two equally vital perspectives reflecting science and ground realities. The event underscored the strength of unlikely collaborations: paediatricians with architects, maternal health experts with city engineers, and academicians with policymakers.

Heat and Public Health Challenges in India

• The monsoon may have arrived early, but India continues to face intense heat seasons.
• The public health impact of extreme heat is significant and cannot be overlooked.
• Health risks include dehydration, heatstroke, and worsening of chronic illnesses.
• Extreme heat is pushing the health system to its capacity limits.
• Current responses are largely siloed and focus on crisis care — such as hospital beds, IV fluids, and emergency admissions.
• Instead, the approach must shift towards prevention-based strategies.
• To effectively tackle the health challenges of a warming world, India’s health system must:
  • Move from reactive care to proactive and preventive action.
  • Become interdisciplinary, integrating multiple fields and expertise.

Heat and Public Health Challenges in India

• Early Monsoon, Persistent Heat
  • Despite the early onset of the monsoon, India continues to experience severe heat seasons.
  • This trend is expected to continue, posing ongoing challenges.
• Public Health Impact of Extreme Heat
  • Heat-related health issues are severe and wide-ranging:
    • Dehydration
    • Heatstroke
    • Exacerbation of chronic illnesses
  • The strain on healthcare infrastructure is unprecedented.

Current Health System Response: Gaps and Needs

Key Recommendations for India’s Health System

• Transition from Reactive to Preventive Care
  • Shift focus from managing heat emergencies to preventing heat-related illnesses.
• Adopt an Interdisciplinary Approach
  • Combine expertise across public health, urban planning, climate science, and community leadership.
• Strengthen Local Capacity and Leadership
  • Empower local systems to lead equity-focused heat resilience strategies.

Gaps in Current Heat-Related Healthcare Practices

• Lack of Heat Exposure Screening
  • Many healthcare providers do not screen for heat exposure during routine checkups.
  • Heat stroke is often misdiagnosed or missed, especially in busy emergency settings.
• Need for Standardized Clinical Protocols
  • Clear protocols for diagnosing and managing heat illnesses are essential.
  • Hospitals should conduct regular summer drills to ensure preparedness.

Simple, Effective Preventive Steps in Healthcare Settings

Multisectoral Approach for Heat Illness Prevention

• Beyond Healthcare: Reducing Exposure
  • Preventing heat illness requires reducing exposure — not just symptom treatment.
  • This calls for coordinated action across sectors:
  • Urban Planning
    • Rethink housing design and public spaces to reduce heat exposure.
  • Water Supply Management
    • Ensure reliable water availability during peak summer months.
  • Labour Protections
    • Enforce regulated outdoor working hours and other safety measures.
  • Climate Science and Health Collaboration
    • Use data-driven, timely interventions guided by climate-health experts.

Building Networks of Excellence for Climate-Health Resilience

• Move beyond isolated ‘centres of excellence’ to networks of excellence that:
  • Bring together experts in public health, climate science, urban development, labour rights, and community voices.
  • Co-design solutions rooted in lived realities, such as:
    • Misting shelters in slums
    • Cool roofing in Anganwadi centres

Extreme Heat: A Social Injustice Multiplier

• Not Just a Weather Event
  • Extreme heat disproportionately impacts the most vulnerable populations:
    • Informal vendors working on sizzling pavements
    • Children in cramped classrooms
    • Elderly living in poorly ventilated tenements
• Those with No Choice Face the Worst
  • People such as waste pickers without shelter and daily wagers under tin roofs suffer the most when the heat index crosses danger thresholds.
  • The common advice to "stay indoors" is often unrealistic and highlights deep systemic inequalities.

Shifting to Preventive, Equity-Focused Public Health

• To reduce the health impacts of heat extremes, we must:
  • Move from reactive emergency care to preventive, equity-rooted public health.
  • Begin with mapping vulnerability beyond meteorological data, including:
    • Where people live
    • How they work
    • What resources they lack

Life-Saving Preventive Measures

• Implement early morning health checks during red alert periods.
• Deploy mobile hydration stations in low-income zones.
• Establish subsidized cool shelters for the homeless.
• Enforce protective policies for outdoor workers.

The Science and Moral Imperative

• The scientific evidence supporting these interventions is clear.
• The moral imperative is equally strong:
  • Climate resilience is meaningless unless it protects those most at risk.

Conclusion

The window for action is narrowing, yet the path ahead remains clear. As climate extremes intensify, India must seize this moment with vision and urgency. By integrating heat resilience into our public health systems, grounded in equity, science, and local leadership, we can safeguard lives and livelihoods. The time to act is not tomorrow or next year — it is now. Let India be the nation that chooses to prepare, protect, and pioneer.