Weakening temperature control on the interannual variations of spring carbon uptake across northern lands.

Ahlstrom, A.; Burkhart, J. F.; Chevallier, F.; Ciais, P.; Huang, M.; Janssens, I. A.; Jeong, S.-J.; Lin, X.; Liu, Z.; Mao, J.; Mohammat, A.; Myneni, R.; Peng, S.; Penuelas, J.; Piao, S.; Shi, X.; Stohl, A.; Tans, P. P.; Wang, T.; Yao, Y.; Zhu, Z.; van der Velde, I. R.