Climate change hope for hydrogen fuel

A tiny spark in the UK’s hydrogen revolution has been lit – at a university campus near Stoke-on-Trent.
Hydrogen fuel is a relatively green alternative to alternatives that produce greenhouse gases.
The natural gas supply at Keele University is being blended with 20% hydrogen in a trial that's of national significance.
Adding the hydrogen will reduce the amount of CO2 that’s being produced through heating and cooking.
Critics fear hydrogen will prove too expensive for mass usage, but supporters of the technology have high hopes.