From CNN: A cloud of ash from a volcano in Iceland swept toward mainland Europe on Thursday, forcing up to 6,000 flight cancellations across the continent, according to the intergovernmental body that manages European air travel. Thousands of flights were affected as some of Europe’s busiest airports closed, including London’s Heathrow; Amsterdam, Netherlands’ Schiphol; and Paris, France’s Charles de Gaulle. Volcanic ash can cause jet engines to shut down. The prime minister of Norway was among those stranded by the closure ofRead more