By Mihir R. Bhatt, All India Disaster Mitigation Institute, India

Extreme heat has quietly become one of the most disruptive risks shaping everyday life in India’s small towns. And this disruption is avoidable.

Unlike floods or cyclones, heat does not arrive with sirens or headlines. It settles in early, stays longer each year, and steadily erodes health, livelihoods, education, and local economies. For small businesses—food vendors, artisans, home-based workers, repair shops, and market traders—extreme heat is no longer an occasional disruption; it is a recurring condition that determines when, how, and whether work can continue, income can flow, food appears for the next meal, and health remains fit to work.

Small towns in India are particularly exposed to extreme heat. They combine rising temperatures with limited infrastructure, thin municipal capacity, and livelihoods that depend heavily on outdoor or semi-outdoor work. In these settings, heat reduces working hours, damages perishable goods, weakens health, and lowers productivity. For affected people, men and more so women, the choice is often stark: protect health by working less, or earn income at the cost of mounting physical strain. These trade-offs rarely appear in official loss figures, yet they accumulate silently over time among the most actively contributing citizens of India.

This issue of southasiadisasters.net starts from a simple but powerful insight coming out of the past three years of activities in 11 small towns of India: small heat resilience measures can make a big difference. Across towns and cities, practical, low-cost actions—shade, ventilation, access to drinking water, reflective surfaces, adjusted work timings, rescheduled meals, and modest workspace improvements—have helped small businesses reduce heat stress while continuing to earn safely. When these measures are locally identified, affordable, and supported early by the affected small businesses themselves, they prevent illness, stabilise incomes, and build confidence to lead other affected citizens of small towns.

Another key lesson is that resilience is most effective when grounded in local evidence. Urban averages often hide where heat is actually felt and who bears the greatest burden. Enterprise-level and neighbourhood-level insights reveal uneven exposure and help direct support where it matters most. When combined with timely finance—small grants, stabilisation fund, early payments, flexible credit, or insurance—knowledge turns into action, and makes adaptation plans for resilience become impactful for big resilience.

The remarkable contributions in this issue bring together frontline experiences, data-driven insights, and policy reflections mostly by those who are affected to show how enduring extreme heat is possible—not through grand projects alone, but through small practical steps that protect people where they live and work. They demonstrate that adaptation in India’s towns does not begin with complexity; it begins with listening, local action, and sustained support for each other.