EnvironmentUnusual orange clouds seen in skies above ScotlandUnusual orange clouds seen in the skies over Falkirk were likely artificial clouds caused by the refinery at Grangemouth, according to weather experts.By The NewsroomPublished 21st Oct 2016, 15:51 BSTUpdated 25th Oct 2016, 16:39 BST The eerie orange clouds lit up the skies above Falkirk. Picture: Lesley McKenzieRelated topics:ScotlandFalkirkGrangemouth