There are widespread calls for the UK government not to abandon a trailblazing tidal power project, but this energy source is no green panacea

Artist's impression of the Swansea tidal power project, showing a walkway around the periphery

Artist’s impression of the Swansea tidal power project

The fate of a pioneering £1.3 billion proposal to build a tidal power lagoon on the UK coast at Swansea hangs in the balance. Green energy supporters around the world have championed it as a trailblazer for a massive untapped source of dependable, renewable energy, calling on the UK government to commit to it.

However, tidal energy is not the saviour many people imagine it to be. The oceans have always created the impression of infinite potential, for example in terms of food resources and waste disposal …

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New Scientist – Earth