Director of the Energy, Technology Innovation Policy research group at Harvard University's Belfer Center for Science and International Affairs in the Kennedy School of Government, Professor Kelly Sims Gallager visited Tsinghua SPPM and gave a lecture on ‘Technology Innovation, Energy and the Environment’ to the IMPA class. She used China as a case study to highlight the achievements and challenges we all face. It was a lively discussion that lasted for two hours with many questions being asked by students. Dean of SPPM, Professor Xue Lan presided over the talks and also shared his ideas on technology innovation, energy and the environment.