Agence France-Presse: The volcanic ash cloud from Iceland is expected to change directions and head towards the Arctic when the weather changes later in the week, the World Meteorological Organisation said on Tuesday. “The current high pressure system with weak winds and slowly descending air in the centre of the high does not help very much to disperse the ash cloud,” the UN weather agency said in a fact-sheet. “This situation is expected to change towards the end of the week, when a stronger low …