It's 6 p.m. and I'm sitting by the phone in a midtown Manhattan cubicle, waiting for Morgan Freeman to finish a round of golf in Chicago. Freeman is in the Windy City at the invitation of BMW, playing in the car company's golf tournament and talking sustainability and hydrogen technology with Tom Purves, chair and CEO of its North American arm. As part of the trip, he agreed to do a few interviews -- some of his first public comments on his environmental leanings. I was first in line. Morgan Freeman. Photo: Tony Barson/WireImage Famous for roles in films like …