Whisper it softly, but a clean, green solution to
Hydrogen: the green-energy problem solver
IN DEPTH | It can be produced with zero emissions, stored indefinitely and be used as a clean fuel for energy storage, transport and heating. But when will H2 be a cost-effective solution? asks Leigh Collins
13 September 2017 11:27 GMT
Updated
15 September 2017 7:37 GMT
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