New York Times: The Energy Star label, the federal government’s nod of approval for energy-efficient products, usually calls to mind household appliances like refrigerators and air-conditioners. But at Ithaca College, a campus known for its embrace of all things sustainable, two dormitories proudly wear the Energy Star label, too. The Energy Star label, hanging here in Clarke Hall, represents the federal government’s nod of approval for energy efficiency. The residence halls, Clarke and Hood, …