Iata director general and chief executive, Tony Tyler (pictured) issued a note of caution, saying: “July results were strongly positive but slowing global trade and the wild gyrations of stock exchanges around the globe suggest that we may be in for some turbulence in coming months. “Following a strong summer the outlook heading into autumn is unsettled to say the least. While passenger demand remains healthy, air cargo growth turned negative in July. “The downward movement in stock markets around the globe reflects investors’ growing concerns about slowing trade and economic growth in emerging economies, as well as China’s continued shift towards domestic markets. Get the full story at Travel Weekly UK