@article{ciais:cea-02186563, TITLE = {{Five decades of northern land carbon uptake revealed by the interhemispheric CO2 gradient}}, AUTHOR = {Ciais, P. and Tan, J. and Wang, X. and Roedenbeck, C. and Chevallier, F. and Piao, S. -L. and Moriarty, R. and Broquet, G. and Le Quere, C. and Canadell, J. G. and Peng, S. and Poulter, B. and Liu, Z. and Tans, P.}, URL = {https://cea.hal.science/cea-02186563}, JOURNAL = {{Nature}}, PUBLISHER = {{Nature Publishing Group}}, VOLUME = {568}, NUMBER = {7751}, PAGES = {221-+}, YEAR = {2019}, DOI = {10.1038/s41586-019-1078-6}, HAL_ID = {cea-02186563}, HAL_VERSION = {v1}, }