Buildings use about 50% of the energy in the United States. Green buildings use less energy and some even generate power. Numerous studies show that workers and students perform better with less absenteeism in these healthier buildings. Green building legislation was enacted with bipartisan support over 10 years ago, and as a result, Maryland’s green building program has saved taxpayers millions in energy costs. With modern design techniques and construction, it costs no more — or very little more — to build a “green” building instead of “brown” one.