You will prepare and submit a term paper on Can Tourism Be Sustainable in the 21st Century. Your paper should be a minimum of 1500 words in length. Tourism is a dynamic industry and in a constant state of change.&nbsp. Can this industry remain relevant in the new millennium and address the needs of a changing global market? Can tourism be sustainable in the twenty-first century? Will this industry evolve to meet important challenges and changes in the 21st century? Airlines are an important sub-sector of this industry and play an essential role in the global tourist market. Airlines allow people to travel from one end of the planet to the author and the commercialization of flight and the expansion of the airline industry has been a boom for the international tourist trade. Airlines have rejuvenated the tourism industry and contributed to the globalization of the tourist trade. Without airlines, this industry was remarkably different and would not be the lucrative global industry that it has now become. Airlines give us unparalleled choice in the vacations we choose and commercial flight operators are the backbone of the dynamic tourist trade.The important role played by airlines in the worldwide promotion of global tourism has come under threat recently by global events and circumstances beyond the control of the airline industry. Plane hijackings on the morning of September 11th, 2001 dealt a severe blow to the airline industry as a whole, but particular airlines, including American and United, two airlines which had their planes hijacked that fateful morning, suffered substantially following the horrendous attacks. In fact, following 9/11 there was talk that both airlines would go under and fold because people simply refused to fly on American or United planes. The events which took place that fateful morning were obviously beyond the control of those two airlines but the repercussions were industry-wide and some argue that more than seven years later, the industry has never really fully recovered.