Washing our laundry is necessary, but we may not know how doing the laundry can harm the environment. A washing machine consumes lots of electricity and water to clean a load of clothing. On average, washers consume 40 gallons per load, making them one of the largest water users in the house. Dryers, on the other hand, consume about 1,000 kilowatt hours per household of energy annually. This energy contributes up to 2,224 pounds of carbon dioxide (CO2) in the atmosphere.