Using causal analysis and machine learning to evaluate the CO2 fertilization of global photosynthesis

Yanghui Kang1, Maoya Bassiouni1, Max Gaber1,2, Xinchen Lu1,3 and Trevor F Keenan1,3, (1)University of California, Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, United States, (2)University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark, (3)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, United States