Thermal fertilization of the boreal forest contributes about half to the increase of CO2 seasonal amplitude over the northern hemisphere since 1960s

Paul O Wennberg, California Institute of Technology, Division of Engineering and Applied Science, Pasadena, CA, United States, Junjie Liu, Jet Propulsion Laboratory, Pasadena, CA, United States, Nicholas Parazoo, University of California Los Angeles, JIFRESSE, Los Angeles, CA, United States, Christian Frankenberg, NASA Jet Propulsion Laboratory, Pasadena, CA, United States and Yi Yin, Caltech, Pasadena, United States