In 2019, Europe experienced several record-breaking heatwaves. In June, the first one featured record heat for that time in early summer, with temperatures of 6°C-10℃ above normal over most of France and Germany, northern Spain, northern Italy, Switzerland, Austria and the Czech Republic . The second heatwave also resulted in all-time records for Belgium, Germany, Luxembourg, the Netherlands and the UK in July. Attribution studies  demonstrated that these would have had extremely small odds in the absence of human-induced climate change or would have been 1.5ºC-3ºC colder without human-induced climate change. This study concluded that state-of-the-art climate models underestimate the trends in local heat extremes compared to the observed trend. Since the 2003 heatwave, which resulted in tens of thousands of deaths across Europe, many European countries have adopted heatwave plans, including early warning systems. Therefore, mortality in 2019 was substantially lower than it might have been. Unfortunately, mortality is not registered systematically across Europe, and therefore, comprehensive analyses are missing. But even based on the countries that provide the numbers, more specifically France, Belgium and the Netherlands, the European heatwave of 2019 resulted in over 2500 deaths . Despite their deadliness and the fact that climate change increases the frequency, intensity and duration of heatwaves globally , heatwaves are not consistently reported in many countries , rendering it currently impossible to estimate climate change impacts on lives and livelihoods comprehensively.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report