How Laundry Detergent Works | HowStuffWorks
This means that the carbon footprint of laundry detergents for one year of laundry is approximately 480 pounds (218 kilograms) per year, or about 10 pounds (4.5 kilograms) per week. So, while this may not seem like a lot, especially if your car produces about 5 tons of CO2 per year, this number only reflects the laundry detergent.