The representative body for the world airline industry, the International Air Transport Association (Iata), has become more pessimistic about the prospects for the sector during this year. Whereas, previously, it expected the airline industry to turn cash positive in the last quarter, now, it its latest forecast, it predicted that the sector would not turn cash positive until next year. Moreover, while Iata had previously forecast that the world’s airlines would burn $48-billion in cash this …