Europe is currently experiencing a significant heatwave, prompting the World Health Organization (WHO) to issue a strong call to action. The WHO is urging European leaders to prioritize investment in health systems capable of withstanding the impacts of climate change. This includes bolstering infrastructure and preparedness for extreme weather events. Simultaneously, the organization stressed the urgent need to accelerate broader climate action to mitigate the increasing frequency and intensity of heatwaves. The WHO warns that without proactive measures, public health will be increasingly threatened by climate-related disasters. The call emphasizes a dual approach: adapting to current climate realities and actively working to reduce future warming. This intervention aims to protect vulnerable populations and ensure healthcare systems can cope with escalating demands.