How is it possible that an existing, potentially inefficient building, is the greenest building?  After all, existing buildings have been built years before with higher energy bills, potentially using more water, and producing more carbon dioxide into the atmosphere!  Yes, yes and yes.   But the existing building has already been built.   Consider that every time a building is built, new products have to be manufactured and shipped for distribution.   Once those products are at distribution centers, they are transported again by trains or trucks to another destination.  Once at that destination, they may encounter yet another distribution center to be sent directly that final destination - a home, condo or commercial building for installation.  At that final location, manpower and equip... 01/19/2022