From the design features in a passive solar house to new technologies in building materials and appliances, there are numerous ways for buildings to become more energy efficient. On The Point , host Mindy Todd talks with Steve Baczek , an architect, who has designed passive homes on the Cape and Islands, and Roe Osborn , an editor at the Journal of Light C onstruction , about ways new and older buildings can incorporate green technology and improve energy efficiency . Here's a Link to