Existing Buildings a Promising Investment, Say Global Firms

The greenest building is the one you don’t build, and the cleanest, cheapest energy is the energy you don’t burn. These refrains are commonly heard in the green building community, and now, in a new report, “A Profitable and Resource Efficient Future,” the World Economic Forum (WEF) has put them on a broader stage and added a third message: a lot of people could make a lot of money by retrofitting existing buildings.