By Zawad Ibn Farid, Lecturer, Institute of Disaster Management and Vulnerability Studies (IDMVS), University of Dhaka, Bangladesh

Extreme heat in Bangladesh’s coastal communities has emerged as a silent crisis, intensified by climate change and compounded by geographic and socio-economic vulnerabilities. Rising temperatures, often exceeding 40°C, intersect with high humidity to create hazardous wet-bulb conditions, where the body’s ability to cool itself is severely impaired. Coastal regions, home to over 35 million people, face unique risks: informal settlements with tin-roofed homes trap heat, while occupational exposure among fishers and farmers—who spend hours under direct sunlight—increases susceptibility to heatstroke and chronic health issues. Saltwater intrusion from sea-level rise further reduces access to potable water, exacerbating dehydration risks. These factors create a cycle of vulnerability, where poverty limits adaptive capacity, and extreme heat entrenches economic precarity.

Youth-led innovations are increasingly bridging gaps left by systemic challenges. In Satkhira, the Youth Adaptation Forum has mobilised networks to address water scarcity and heat resilience through community awareness campaigns and mangrove restoration. Mangroves, beyond their role as carbon sinks, provide shaded microclimates and reduce land surface temperatures, offering a dual solution to heat and coastal erosion. Similarly, in Khulna, young entrepreneurs pilot affordable cooling solutions, such as clay-based evaporative coolers and portable solar-powered fans, fit for fishing communities. These low-tech innovations, rooted in local materials and knowledge, demonstrate scalability potential, particularly where grid electricity remains unreliable.

Technology is also reshaping heat adaptation. Youth collectives partner with meteorologists to disseminate early warnings via social media and community radio, translating complex forecasts into actionable advice for farmers and fishers. In Barguna, a youth-led initiative maps heat-vulnerable zones using satellite data and handheld thermal sensors, guiding the placement of shaded rest areas and water distribution points. Such hyperlocal strategies, though nascent, highlight the efficacy of combining traditional wisdom with digital tools.

However, the true test lies in institutional recognition and support. While Bangladesh’s National Adaptation Plan acknowledges extreme heat, youth-led efforts often operate on marginal funding. The absence of heat-specific protocols in disaster management frameworks further limits large-scale replication. For instance, despite the success of school-based heat education programmes in Patuakhali, similar initiatives struggle to secure government backing. Scaling requires integrating youth innovators into policy dialogues and allocating dedicated budgets for community-driven projects.

Gender-responsive approaches remain critical. Young women in coastal communities lead initiatives to install rainwater harvesting systems and promote heat-resistant crops like saline-tolerant maize, directly addressing the dual burdens of water insecurity and agricultural losses. Their participation ensures solutions align with the needs of women, who bear disproportionate caregiving responsibilities during heatwaves.

The path forward demands collaborative frameworks. Universities, NGOs, and local governments must co-design resilience programmes that prioritise youth leadership. Lessons from mangrove restoration and early warning systems underscore the value of ecological solutions and inclusive communication. As climate projections predict a 1.4°C temperature rise by 2050, investing in youth ingenuity is not merely strategic—it is existential. Coastal Bangladesh’s fight against extreme heat hinges on empowering its youngest innovators to transform vulnerability into resilience, one community at a time.

Disclaimer: The views expressed in this piece are those of the author/s and do not necessarily reflect the views or policies of AIDMI.