different basins worldwide, with conclusions on the relative contribution of climatic and anthropogenic factors sometimes depending on the methodology . Precipitation explains over 80% of the changes in discharge of large rivers from 1950 to 2010 in northern Asia and northern Europe, where the impact of human activities is relatively limited . In northwest Europe, precipitation and evaporation changes explain many observed trends in streamflow . In several polar areas in northern Europe , North America  and Siberia, many studies reported increased winter streamflow primarily due to climate warming, for instance, more rainfall instead of snowfall and more glacier runoff in the winter period  . A similar phenomenon of the earlier snowmelt runoff is also found in North America during 1960-2014 . Thus, climate drivers largely explain changes in the average and maximum runoff of predominantly snow-fed rivers .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report