Paris, 23 january 2013

Greenland ice cores tell story of warm spell

The analysis of ice cores extracted at the NEEM ice-drilling site has enabled an international team of scientists to reconstruct Greenland's climate history over the past 130,000 years, with the participation in France of CNRS, CEA, UVSQ, Université Joseph Fourier and IPEV. For the first time in the Arctic, the researchers have succeeded in retrieving ice formed during the last interglacial period, 130,000 to 125,000 years ago, which was marked by significant warming in that region. Their findings show that the Greenland ice sheet only contributed 2 meters to the 4—8 meters of sea level rise observed during that period. Published on 24 January in Nature, this study provides valuable information about the relationship between climate and sea level rise.

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Eemian interglacial reconstructed from a Greenland folded ice core. D. Dahl-Jensen, M.R. Albert, A. Aldahan, N. Azuma, D. Balslev-Clausen, M. Baumgartner, A.-M. Berggren, M. Bigler, T. Binder, T. Blunier, J.C. Bourgeois, E.J. Brook, S.L. Buchardt, C. Buizert, E. Capron, J. Chappellaz, J. Chung, H.B. Clausen, I. Cvijanovic, S. M. Davies, P. Ditlevsen, O. Eicher, H. Fischer, D.A. Fisher, L. Fleet, G. Gfeller, V. Gkinis, S. Gogineni, K. Goto-Azuma, A. Grinsted, H. Gudlaugsdottir, M. Guillevic, S.B. Hansen, M. Hansson, M. Hirabayashi, S. Hong, S.D. Hur, P. Huybrechts, C. Hvidberg, Y. Iizuka, T. Jenk, S.J. Johnsen, T.R. Jones, J. Jouzel, N.B. Karlsson, K. Kawamura, K. Keegan, E. Kettner, S. Kipfstuhl, H.A. Kjær, M. Koutnik, T. Kuramoto, P. Köhler, T. Laepple, A. Landais, P. Langen, L.B. Larsen, D. Leuenberger, M. Leuenberger, C. Leuschen, J. Li, V. Lipenkov, P. Martinerie, O.J. Maselli, V. Masson-Delmotte, J.R. McConnell, H. Miller, O. Mini, A. Miyamoto, M. Montagnat-Rentier, R. Mulvaney, R. Muscheler, A.J. Orsi, J. Paden, C. Panton, F. Pattyn, J.-R. Petit, K. Pol, T. Popp, G. Possnert, F. Prié, M. Prokopiou, A. Quique, S.O. Rasmussen, D. Raynaud, J. Ren, C. Reutenauer, C. Ritz, T. Röckmann, J.L. Rosen, M. Rubino, O. Rybak, D. Samyn, C.J. Sapart, A. Schilt, A. Schmidt, J. Schwander, S. Schüpbach, I. Seierstad, J.P. Severinghaus, S. Sheldon, S.B. Simonsen, J. Sjolte, A.M. Solgaard, T. Sowers, P. Sperlich, H.C. Steen-Larsen, K. Steffen, J.P.Steffensen, D. Steinhage, T. Stocker, C. Stowasser, A. S. Sturevik, B. Sturges, A. Sveinbjörnsdottir, A. Svensson, J.-L- Tison, J. Uetake, P. Vallelonga, R.S.W. van de Wal, G. van der Wel, B.H. Vaughn, B. Vinther, E. Waddington, A. Wegner, I. Weikusat, J.W.C. White, F. Wilhelms, M. Winstrup, E. Witrant, E. Wolff, C. Xiao, J. Zheng. Nature, 24 janvier 2013.

Contact information:

Researcher l Valérie Masson-Delmotte l T +33 (0)1 69 08 77 15 l
CNRS Press Office l Priscilla Dacher l T +33 (0)1 44 96 46 06 l


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