Geothermal and the Lancaster Environment Concerned about the environment? Sure, we all are. By choosing a geothermal product you emit no toxic greenhouse gasses such as carbon monoxide into your environment. Your family's safety is a top priority to you and we understand that. Providing a place of comfort and protection for your family just makes good sense. You can have both when you choose geothermal. Here are some agencies that agree. The EPA (Environmental Protection Agency) and the DOE (Department of Energy) confimed that geothermal heat pumps are the most environmentally friendly and cost-efficient way to heat and cool your home. So now you know geothermal units are truly a natural, green way to live.