Reader issue #616Buildings are definitely energy hogs. The SUV is the environmental bad-boy symbol, but buildings consume more energy than cars and trucks. It's estimated that commercial and residential buildings in the U.S. consume 65 percent of all electricity, as well as 12 percent of drinkable water and 40 percent of all raw materials, according to the Commission for Environmental Cooperation, an international organization that is expected in early 2008 to release a report evaluating green building in the U.S., Canada, and Mexico.