One of the Ecology & Environment team's goals is to explore ways to make Marianist facilities more energy efficient. This not only includes schools, parishes and retreat centers, but the homes in which we live. Energy efficiency (delivering the same services for less energy) reduces negative effects associated with burning fossil fuels - coal, oil and natural gas. The less fossil-fuel energy we use, the fewer greenhouse gases we emit and the better our air quality. While some energy efficiency strategies require an initial investment, they all more than pay for themselves in lower utility bills. In fact, energy efficient solutions can lower residential and commercial energy bills by 20 to 30 percent (US EPA).