PLEA Network

30 March 2016, Board on Atmospheric Sciences and Climate, Attribution of Extreme Weather Events in the Context of Climate Change (report). The science of extreme event attribution has advanced rapidly in recent years, giving new insight to the ways that human-caused climate change can influence the magnitude or frequency of some extreme weather events. Confidence is strongest in attributing types of extreme events that are influenced by climate change through a well-understood physical mechanism—for example, the more frequent heat waves that are closely connected to human-caused global temperature increases. Confidence is lower for other types of events, such as hurricanes, whose relationship to climate change is more complex and less understood at present. For any extreme event, the results of attribution studies hinge on how questions about the event’s causes are posed, and on the data, modeling approaches, and statistical tools chosen for the analysis. Read More here