Bob Marshall, veteran Louisiana outdoors reporter, will discuss issues of climate change, coastal erosion and hurricane protection as Louisiana dodged the power of Hurricanes Harvey and Irma, but remains vulnerable to environmental challenges.       George Bevan, former LSU All-American linebacker on a 9-1 team of 1969, recalls the day when a 5-11, 190-pound defender could be considered the best in the nation. Bevan will compare the LSU teams he starred on with those of today as the Tigers currently field a unit with 18 players above 300 pounds.