At many companies, sustainability officers are placed in the upper echelons of companies, where they are highly visible. In some cases, the CEO has taken on the extra duty. By Tiffany Hsu, The Los Angeles Times, December 30, 2009 As companies grapple with climate change, try to attract eco-conscious customers and develop alternative energy agendas while complying with regulations, a new kind of administrator is moving into the executive suite to help out. Sustainability officers and green supervisors, some say,…