内容摘要：In its report, the CCC said there were "important lessons to learn", and that governments in both Westminster and Cardiff Bay should have been better prepared.

In its report, the CCC said there were "important lessons to learn", and that governments in both Westminster and Cardiff Bay should have been better prepared.

Blast furnaces produce molten iron by splitting rocks containing iron ore.It is a chemical reaction that requires intense heat, and which emits high levels of carbon into the atmosphere.

It is known as primary steelmaking, or virgin steelmaking, as it extracts iron from its original source and can be purified and treated to make all types of steel.The BBC was given permission to record inside the blast furnace during its final days of operation.James Raleigh, who has been involved in operating both blast furnaces in Port Talbot, said: "I have been in there quite a few times, but it is still very impressive to me."

The works technical manager for the coke, sinter and iron department added: "Working in this industry, the scale of it is absolutely huge. It is still very impressive every time I go in there."Temperatures inside the furnace reach more than 2,000C (3,632F) with liquid iron "tapped" by workers flowing out at a temperature of around 1,500C (2,732F).

, while the closure of the second will mark the end of primary steelmaking in Wales.

Tata Steel UK has consistently said that its blast furnace operations were losing £1m a day, and it will invest £1.25bn in an electric arc furnace which would reduce emissions and secure the future of steelmaking."Everyone knows a Gwen, who is very particular about things, while everyone knows a Nessa, someone who you would call if you were in trouble."

Laura said there are no other comedy shows that represent Wales with quite the same impact, and re-watching the show still makes her emotional now."It was the absolute perfect ending, especially with the thanks to the people of Barry. I was bawling my eyes out on Christmas day," she said.

Laura said she can see people re-watching the show for years to come.If you're in Barry, Vale of Glamorgan, and the surrounding areas, the figures also suggest you're 29% more likely to have watched the finale on BBC iPlayer.