Lean has authored or co-authored 117 refereed journal papers and 34 conference proceedings in the scientific literature. She has delivered over 290 presentations at scientific meetings, seminars, colloquia, and lectures. Lean was also a lead author of the Intergovernmental Panel on Climate Change (IPPC) Report, which was recognized with the 2007 Nobel Peace Prize; she has served on many NRC and NASA committees, including the recent NRC Decadal Surveys of Earth Science and Applications and Solar and Space Physics.