Stanford professor Mark Jacobson has sued a prominent energy researcher and the National Academy of...: Stanford professor Mark Jacobson has sued a prominent energy researcher and the National Academy of Sciences for defamation over a sharply-worded rebuttal of his work, shifting a heated scientific debate over renewable energy out of the journals and into the courts. The suit, filed September 29 in a Washington, D.C., superior court, demands a retraction of a June paper in the Proceedings of the National Academy of Sciences.