The study examines the increasing freshwater discharge from the six largest Eurasian rivers to the Arctic Ocean, which has risen by 7% from 1936 to 1999, amounting to an additional 128 cubic kilometers per year. This increase is correlated with changes in the North Atlantic Oscillation (NAO) and global mean surface air temperature. The findings suggest that the Arctic, already disproportionately affected by global warming, may exert strong feedback on global climate through its impact on ocean circulation and the hydrologic cycle. The study also highlights the potential importance of arctic river discharge as a feedback mechanism in Atlantic thermohaline circulation (THC) within the 21st century, emphasizing the need for further research on the coupled land, ocean, and atmospheric components of the arctic hydrologic cycle.The study examines the increasing freshwater discharge from the six largest Eurasian rivers to the Arctic Ocean, which has risen by 7% from 1936 to 1999, amounting to an additional 128 cubic kilometers per year. This increase is correlated with changes in the North Atlantic Oscillation (NAO) and global mean surface air temperature. The findings suggest that the Arctic, already disproportionately affected by global warming, may exert strong feedback on global climate through its impact on ocean circulation and the hydrologic cycle. The study also highlights the potential importance of arctic river discharge as a feedback mechanism in Atlantic thermohaline circulation (THC) within the 21st century, emphasizing the need for further research on the coupled land, ocean, and atmospheric components of the arctic hydrologic cycle.