Bibliographical noteFunding Information:
We appreciate support from the US National Science Foundation (award 1830640, ‘Paleohydrological assessment of extreme flooding events’). The final version of this Comment was improved by suggestions from L. Davis, D. Lam, T. Liu and A. Díez Herrero. Discharge data for the Red River of the North was kindly provided by F. Unduche (Manitoba Infrastructure and Transportation). We also acknowledge use of the USGS PeakFQ program (https://water.usgs.gov/software/ PeakFQ). This Comment is a contribution to the PAGES Floods Working Group (http://pastglobalchanges.org/ science/wg/floods).