There are fears reopening South Crofty will damage Cornwall's Mining World Heritage Status.

A team from Unesco wants it stopped.

They say we need more research into the impacts.

Ex-miner Mark Kaczmarek sat on the committee that bid for special protection and calls the claims rubbish: "World Heritage Site Status is very, very important for Cornwall. We can market ourselves on it. It's an excellent tool to have for our economy, but it shouldn't get in the way of economic regeneration in Cornwall".

MP for Camborne and Redruth George Eustice says up to 450 jobs hang on the scheme: "It could be a very important investment in our town, it can resume mining in Cornwall, something that we've always been famous for, and I think it can provide some high-paid jobs for the future as well as bringing to life our heritage".

The World Mining Heritage Committee says full details of how mining were resumed were submitted after planning consent was given and the project should be stopped while research into the impacts is carried out.

It is also raising concerns about the development of South Quay in Hayle, warning it would damage the area's Outstanding Universal Value, or cultural significance.