Atlanta, Ga.: the famous "Hot-lanta" of Southern heat and hospitality, home of "down-home" fried chicken and a growing black middle class, cradle of the largest historically black college community in the world, hotbed of the civil-rights movement, and ... the sprawl capital of the South. As Atlanta gets greener, who will benefit? Photo: iStockphoto. As a resident of Atlanta for the past 15 years, I have witnessed one bad urban-planning decision after another. I have watched the fare for public transportation go up to pay for its expansion into the suburbs, while services in the inner city got cut -- …