How Much CO2 Is Taken Up by the European Terrestrial Biosphere?

Reuter, M. ; Buchwitz, M. ; Hilker, M. ; Heymann, J. ; Bovensmann, H. ; Burrows, J. P. ; Houweling, S. ; Liu, Y. Y. ; Nassar, R. ; Chevallier, F. ; Ciais, P. ; Marshall, J. ; Reichstein, M.