Takeaways:
- Engineers are looking to replace city trains and trams with biomethane-fuel alternatives to help the environment.
- Biomethane can be derived from several waste products including sewage sludge, farming crop residue, animal manure, and food waste.
- When these are broken down by bacteria they produce a gas that can be used as a cleaner alternative fuel.
Click here to view the original web page at: New Sustainable UK Train Runs on Human Waste
