A former Minister has urged the Government to get behind the Severn Barrage project.
It would cost a staggering twenty five billion pounds - of private sector money - and according to former Welsh Secretary Peter Hain, would generate five per cent of the country's entire electricity from tidal power.
However it's strongly opposed by conservation groups - who say it would damage internationally-protected mudflats - and by the port of Bristol. Today MPs heard both sides of the argument, as our political correspondent Bob Constantine reports.
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It's a pretty rather start to the final month of 2015.
It's going to be a dull and damp start to the last month of 2015.
Plans for a new 12,000 seater arena have been submitted to Bristol City Council but there are concerns over the venue's lack of parking.