Limited gain in Arctic–boreal photosynthesis from warming indicated by multi-scale observational constraints
Wu Sun, Carnegie Institution for Science Stanford, Department of Global Ecology, Stanford, CA, United States, Weiwei Zhan, Columbia University, Department of Earth and Environmental Engineering, New York, United States, Jiaming Wen, Cornell University, School of Integrative Plant Science, Soil and Crop Sciences Section, Ithaca, United States and Anna Michalak, Carnegie Institution for Science Stanford, Department of Global Ecology, Stanford, United States