By Erica Peterson
http://stream.publicbroadcasting.net/production/mp3/wkms/local-wkms-987475.mp3
Louisville, KY – Green building is often seen as a luxury. A lot of projects are capital-intensive, and take years to make up for their costs in energy savings. But as Kentucky Public Radio's Erica Peterson reports, as energy prices rise, sustainable buildings are starting to make even more fiscal sense for all types of buildings.