MAKING HIS POINT. Former Vice President Al Gore, left, grabs the attention of New Orleans Mayor C. Ray Nagin at the Tulane University uptown campus on Tuesday (May 1), where Gore was honored at a luncheon before his appearance at McAlister Auditorium. Gore gave his global warming presentation, "An Inconvenient Truth," to the Tulane audience. (Photo by Paula Burch-Celentano)