Once the heatwave has ended, evaluation of what worked well and how improvements can be made is key to prepare for the next heatwave. Governments can, for example, evaluate whether the early warning systems provided timely and useful information, whether coordination went smoothly and assess the estimated number of lives saved, to determine the effectiveness of the measures implemented. Sharing these lessons learned is critical to allow other cities and regions to plan for heat extremes. After the heatwave, citizens can reflect if their responses were sufficient, whether investments are needed to be better prepared and draw key lessons about what  to do when the next heatwave strikes.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report