In the version of this article initially published, David Nogues Bravo’s name appeared incorrectly (David Bravo Nogues). Ref. 61 has also been updated to read "Wang, Y. et al. Supporting data for: Late Quaternary dynamics of Arctic biota from ancient environmental genomics. https://doi.org/10.18710/3CVQAG, DataverseNO, V1 (2021)". The changes have been made to the HTML and PDF versions of the article.