Single use coffee pods have become very popular due to their convenience for making a single cup of coffee. However, those pods are difficult to recycle, which means they all end up in the trash and are amounting to a huge addition to the waste stream. InHabitat.com lists some alternatives that are now on the market that are either refillable, biodegradable, or make changes to existing machines so that they can now make single cups of coffee. Since few people actually recycle coffee pods, some coffee pod manufacturers are trying to make pod recycling easier.