Eyjafjallajokull_3111951bAn ash cloud crisis worse than the Icelandic eruption that grounded thousands of flights in 2010 could be imminent, scientists have claimed. The warning comes after the discovery that volcanic ash has travelled from Alaska to Northern Ireland in the past. The discovery overturns previously-held assumptions about the distances deposits could drift. It is the first evidence that ash clouds can travel across the Atlantic Ocean. Dr Sean Pyne-O’Donnell, from Queen’s University Belfast (QUB), who helped conduct the research, said it could have major implications for the aviation industry. More