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Reconstructing Arctic temperatures prior to the recent climate changes requires to use indirect indicators in paleoclimatic archives.An international team including two French laboratories(1) constructed a high resolution database allowing to precisely reconstruct Arctic temperatures. Over the last centuries, the results are consistent with direct observations.Temperature evolution over the last 2000 years in the Arctic-subarctic region based on the Arctic 2k PAGES database (modified using Nicolle et al., 2018). Photo credit: L. Chaumillon.Sources:Institut National des Sciences de l'Univers, CNRSLinderholm, H. W., Nicolle, M., Francus, P., Gajewski, K., Helama, S., Korhola, A., Solomina, O., Yu, Z., Zhang, P., D'Andrea, W. J., Debret, M., Divine, D. V., Gunnarson, B. E., Loader, N. J., Massei, N., Seftigen, K., Thomas, E. K., Werner, J., Andersson, S., Berntsson, A., Luoto, T. P., Nevalainen, L., Saarni, S., and Väliranta, M.: Arctic hydroclimate variability during the last 2000 years: current understanding and research challenges, Clim. Past, 14, 473-514, https://doi.org/10.5194/cp-14-473-2018Nicolle, M., Debret, M., Massei, N., Colin, C., deVernal, A., Divine, D., Werner, J. P., Hormes, A., Korhola, A., and Linderholm, H. W.: Climate variability in the subarctic area for the last 2 millennia, Clim. Past, 14, 101-116, https://doi.org/10.5194/cp-14-101-2018&#160;(1) Laboratoire Morphodynamique continentale et côtière (M2C, Université de Caen Normandie / Université de Rouen Normandie / CNRS) and Laboratoire Géosciences Paris-Sud (GEOPS/IPSL, CNRS / Université Paris-Sud)