No conclusive evidence emerges regarding recent temporal trends in excess mortality attributable to cold exposure . Quantitative detection and attribution studies of temperature- related mortality are still rare. One study , using data from 43 countries, found that 37%  of average warm-season heat-related mortality during recent decades can be attributed to anthropogenic climate change . Studying excess mortality associated with past heatwaves, such as the 2003 or 2018 events in Europe, even higher proportions of deaths attributable to anthropogenic climate change have been reported for France and the UK . Formal attribution studies encompassing cold-related mortality are quasi non- existent. The very few studies from Europe and Australia  find weak impacts of climate change on cold-associated excess mortality, with contradictory outcomes both towards higher and lower risks .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report