A decision on whether to grant permission for a multimillion pound potash mine on the North York Moors National Park could have implications for other national parks.
York Potash hopes to place the mine in Sneaton, just outside Whitby.
However, campaigners say that the area must remain protected.
Supporters are arguing that the decision will bring 4,000 new jobs to the area and massive economic benefits.
The planning decision was due to take place last Monday but has been deferred for a third time to allow the company to assess the environmental impact.
The final decision may now not be made until next year.
More top news
Despite a significant rise in the number of historical sexual assaults being recorded, Durham Police's recorded crime has remained level.
Northumbria Police has issued derby day information for Sunderland and Newcastle fans ahead of the Easter Sunday game.
Left-footed footballs, backwards web searches, police camels and an eco-friendly Jeremy Clarkson are among today's traditional tall tales.