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Challenges to the cruise line industry come from the new emission regulations that will come into effect starting in 2015. These new regulations will be stiffer and this is in conjunction with the higher fuel costs. When it comes to revenues, cruise lines will continue to find ways to increase the revenue per person, despite the fact that the economy has shown signs of recovery. Finally, technology has allowed social networking sites to have a profound effect in the cruise line industry, allowing people to share their opinions online. In addition, new forms of technology will make passengers' experiences even better and improve the operation of the ships.