Heatwaves

Heatwaves Intensify Across South Asia, Raising Health and Environmental Concerns South Asia, including Bangladesh, is witnessing a growing frequency and intensity of heatwaves, posing severe threats to public health, agriculture, and infrastructure. Scientists attribute the surge to climate change, noting that rising global temperatures and shifting weather patterns are creating longer, more extreme periods of heat during pre-monsoon and summer months. Prolonged heatwaves have led to dehydration, heatstroke, and increased mortality among vulnerable populations, especially the elderly and children. Urban areas with dense populations and limited green spaces experience the “urban heat island” effect, where concrete and asphalt amplify temperatures by several degrees. Hospitals report higher cases of heat-related illnesses, and public health advisories urge citizens to stay hydrated, avoid outdoor activities during peak hours, and use cooling facilities when possible. Agriculture and water resources are also under pressure. Crops such as rice, wheat, and vegetables face stress from higher temperatures and decreased soil moisture, impacting yields and food security. Rivers and ponds are warming, affecting fisheries and freshwater biodiversity. Experts emphasize that heatwave adaptation strategies, including early warning systems, public awareness campaigns, urban greening, and improved water management, are essential. Without coordinated action, the increasing frequency and severity of heatwaves could have long-term social, economic, and environmental consequences, making climate resilience a national priority.