Attributing mortality from extreme temperatures to climate change in Stockholm, Sweden
Author: ["Daniel Oudin Åström","Bertil Forsberg","Kristie L. Ebi","Joacim Rocklöv"]
Publication: Nature Climate Change
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Abstract
A changing climate is increasing the frequency, intensity, duration and spatial extent of heat waves. These changes are associated with increased human mortality during heat extremes. At the other end of the temperature scale, it has been widely speculated that cold-related mortality could decrease in a warmer world. We aim to answer a key question; the extent to which mortality due to temperature extremes in Stockholm, Sweden during 1980–2009 can be attributed to climate change that has occurred since our reference period (1900–1929). Mortality from heat extremes in 1980–2009 was double what would have occurred without climate change. Although temperature shifted towards warmer temperatures in the winter season, cold extremes occurred more frequently, contributing to a small increase of mortality during the winter months. No evidence was found for adaptation over 1980–2009. Climate extremes are on the increase. Research into mortality from extremes of heat in Stockholm now shows that during the period 1980–2009 mortality was double that likely to have occurred without climate change. Moreover, the frequency of cold extremes also increased slightly, despite higher average winter temperatures, contributing to a small increase in mortality during the winter months.
Cite this article
Oudin Åström, D., Forsberg, B., Ebi, K. et al. Attributing mortality from extreme temperatures to climate change in Stockholm, Sweden. Nature Clim Change 3, 1050–1054 (2013). https://doi.org/10.1038/nclimate2022