All garbage bags end up in landfills, therefore it is everyones duty to use bags that are biodegradable. Plastic bags must not be used, so these bags will never biodegrade and pile up. The green biodegradable bags are single-use bags that when filled up can be tied up and are thrown away. These bags are supplied to retailers as well as largely in hospitals, clinics and hotels. These are different from traditional plastic bags, as these can be broken down by the living things over time.