There are actualy more than one eco-friendly ways to wash laundry.
The biggest ecological concern one should have regarding his laundry is what detregent he is using.
Choose Your Detergent Wisely!
This article actualy covers it pretty well:
Why are You still using Laundry Detregents? 7 Smart solutions To Use Instead
Most people are not even aware of the huge damage traditional detregents are causing to our soil and rivers.
The good news is that there are a few good solutions everyone can use instead:
1. Mrs. Meyer’s Laundry 4X Concentrated Detergent
This product is 98% naturally derived and the container is 50% post-consumer plastic. Great if you want to stick with a liquid solution.
2. DanSoap All Natural Laundry Soap
This one is 100% bio-based and the package is 100% recycable.
3. Green Clean Eco Washer Laundryls (Blue balls)
Here the cleaning process is based on mechanical cleaning and not chemical cleaning.