This article describes how there are an increasing number of eco-friendly hotels,(popping up) in general, but more specifically in urban center.
The article points to be the cost of energy and the new abundance of green technology as the primary reasons for the surge in the number of eco- friendly lodging.
The article gives several examples of how city hotels are employing eco-friendly practices and products.
First, Sheraton has introduced fuel cells in four of its urban locations. Fuel cells are ultraclean power plants with up to twice the efficiency of fossil fuel.
Second, Hyatt is using renewable energy source (wind, hydro, and solar).
Finally, Marriott and Hilton are even seeking difficult- to- attain leadership in Energy and Environmental Design certificates for the U.S Green Building Council, which can yield significant tax benefits.