Plans for a potash mine four miles south of Whitby have been submitted to the National Park authority in the North York Moors.
The company behind it says that it will invest a billion pounds into the mine - creating thousands of jobs in the Sneaton area.
However, opponents say that they are worried that it could spoil one of England's most beautiful areas.
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The club says it is upset that comments made by its manager Ronnie Moore have been 'escalated'.
Most Sunderland fans have arrived at St James Park without any trouble, after a campaign for peace out of respect for the victims of MH17.
The Met Office have issued a yellow "Be Aware" warning of strong winds for the region for Sunday into Monday