The increasing risk of heatwaves to vulnerable populations in eastern Australia

Abstract Heatwaves have caused more fatalities in Australia than any other natural hazard, and their frequency is expected to increase due to anthropogenic climate change. This growing risk underscores the urgent need to evaluate and enhance adaptation strategies for heatwaves to protect vulnerable community members. This study investigates historical trends in heatwave characteristics across New South Wales (NSW), identifies regions with increasing exposure in recent decades, and assesses risks