Geothermal and the Cape Cod Environment Concerned about the environment? Sure, we all are. By choosing a geothermal product you produce no dangerous greenhouse gasses such as carbon monoxide into your environment. Your family's safety is utmost to you and we understand that. Providing a place of comfort and protection for your family goes hand in hand. You accomplish both when you choose geothermal. Here are some agencies that agree. The EPA (Environmental Protection Agency) and the DOE (Department of Energy) concluded that geothermal heat pumps are the most environmentally safe and cost-efficient way to heat and cool your home. So now you know WaterFurnace units are truly a natural, green way to live.