Are people flushing an amazing source of energy down the loo?

Siemens’ hydrogen trains will run on Deutsche Bahn ...

An event at Network Rail’s Tuxford Test Tracks highlights how hydrogen and rail have a role in both industry’s futures, as RICHARD WILCOCK explains

What’s it worth to make your boat’s facilities easier and more convenient to use? Jake Kavanagh looks at the costs and the benefits to help decide

Geoff Hodge looks at putting worms and bacteria to work to produce quality composts and liquid feeds

How dead plants and animals decay, and how living organisms rely on this natural process to survive