 In such a system, each professor would serve on one such ad hoc committee per year, except for the year in which he or she is being reviewed.Although his proposed system is unorthodox, Columbia agreed to implement it in Helfand's case.David Helfand is a fellow for the Committee for Skeptical Inquiry and, in addition to starting the course on global warming at Quest University, he has often expressed views in line with the skeptical movement.