MIAMI/PARIS (Reuters) – Global airlines raised their forecast for 2015 industry profits by more than 17 percent to $29.3 billion on Monday, almost doubling from last year and heralding a boom for carriers in North America that stand to reap half the worldwide total. The International Air Transport Association (IATA), announcing the upgrade during a gathering of 260 member airlines, said lower oil prices were the main factor pushing the industry further into the black.