 Spatial distribution of projected change in Northern Hemisphere river ice duration under the RCP4.5 emission scenario by 2080-2100 relative to the period 2009-2029. White areas refer to rivers without ice cover in the period 2009-2029 . Reference period isolines indicate river ice duration in the period 2009-2029. Coloured areas depict loss of ice duration in days. Blue areas depict a projected increase in river ice duration. Grey land areas indicate a lack of Landsat-observable rivers .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report