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Swansea Bay Tidal Lagoon
Jeremy Corbyn has promised to back proposals for a tidal power lagoon in Swansea Bay if Labour wins power.
Plans for the lagoon were rejected by Tory UK ministers in June, but Labour's leader backed them as part of a "green jobs revolution" on the final day of the Labour conference in Liverpool.
Shadow cabinet member Nia Griffith told BBC Wales such schemes were "important for climate change and the economy".
Local politicians heavily criticised the scrapping of the £1.3bn project.
First Minister Carwyn Jones says £1m will be recouped from loans made to tidal lagoon companies.
On Monday it was announced that the Swansea Bay tidal lagoon has been scrapped by the UK Government because the £1.3bn price tag is not value for money. Local politicians and community leaders criticized the decision, with some claiming the people of Wales "have been betrayed again". On BBC Radio Wales, Dot Davies spoke to Tonia Antoniazzi, Labour MP for Gower, who is part of a group of politicians who issued a joint statement calling on Alun Cairns to "consider his position" - calls which Mr Cairns has rejected.