Tourism is travelling for business or pleasure. Tourism may either be local (within the boundaries of one’s National country) or international. According to the World Travel and Tourism Council (2011), tourism generates a total estimate of 7.2 billion US dollars, and this amounts to over 9.8% of the total world’s GDP. Similarly, the tourism sector has been able to create job opportunities for more than two hundred and eighty-four million people all across the globe (Chhetri et al, 2017, P. 402). Predictions made are that there shall be a steady growth in the tourism sector, of 4% annually for the next ten years (Lim & Bouchon, 2017, P. 15). Tourism is a global phenomenon in many ways. First, tourism is a discretionary activity implying that; it is not a basic need for all people. Secondly, tourism develops economic importance at a worldwide scale, due to the revenue accruing from tourist activities. Third, a majority of the National governments across the world see tourism as a source of employment opportunities (Chhetri et al, 2017, P. 400). Lastly, according to studies, tourism is progressively becoming linked to the quality of life matters; this is because tourism has become a basic right in the developed and the Western industrialized countries (in other words, holiday entitlement). Also in some underdeveloped countries, tourism may be advocated as a probable solution to poverty. The paper shall, therefore, discuss some of the trending global issues that are affecting the tourism and aviation.TerrorismThe first problem to consider is the issue of terrorism and its effects on tourism. From 1970 to 2013, there have been: more than 127,000incidences of terrorist attacks across the world (Sönmez & Sönmez, 2017, P. 115). Similarly, from 2000 to 2013 there have been over 55,000 terrorist incidences, with 167 of them targeting tourists (Liu & Pratt, 2017, P. 407). The same research work shows that a whopping total of 699 tourists were killed in these terror attacks, and 1,368 of them were injured. Conferring to Galily, Tamir and Levy (2012), the definition of terrorism is; an act of hurting representative symbols (Embassies of countries) or killing innocent people. Terrorism acts are driven by organizations or individuals who have some common beliefs and or those who are violently demanding recognition. Beliefs and some political motives, mostly trigger terrorism acts. These suicidal acts are usually directed towards passive military targets and soft civilians. Hence, the major objective of any terrorism occurrence is to; affect the group that which they attack, thereby obtaining the attention and recognition of the political class.The main reason behind terrorist attacks on tourists may be political factors, religious issues, social objectives, and lastly for publicity purposes. An example, in this case, is the bail bombing where tourists from foreign countries are targeted (Liu & Pratt, 2017, P. 405). Similarly, there is the bombing of an international event. A perfect example is a case in Boston Marathon, where the terrorist auctioned to gain publicity. In the same way, terrorist launch attacks so that they may weaken governments, and ruin their political stability. The Economic motives for terrorism are to cause loss of income or foreign revenue, and also to weaken the state’s economy, thereby enabling them to have negotiations with the ruling government. When considering the social motives, terrorism is commenced to undermine social order. Alike, other believe that terrorism is a perfect way of addressing the issue of social injustice; that is symbolized by the tourism industry. The main reason as to why tourists have become potential targets in recent years may be because of:The large gathering of people, especially in events.Developed infrastructure, e.g., in the transport sector, shopping centres, airports, and hotels.Tourists are harmless. Therefore, they are perceived as soft and easy targets.Damage to the image of the destination.Effects of Terrorism on TourismSome of the consequences of terrorism include; the reduction in tourism demand. People tend to flee from terror-prone destinations and relocate to more peaceful places where they do not have to fear for their lives. Increased cases of insecurity, this causes delays and tends to increase the cost of tourism due to the demand on the government to provide additional security personnel to take care of the tourists. Third, there is the relocation of tourism; this implies that tourist tends to shift to countries that are more secure. Such relocation lead to massive loss of foreign exchange in the country which is affected by terrorism. Finally, terrorism affects long-term investments negatively, and it may lead to major losses.Natural DisastersA natural disaster is a major threat to tourism. With the increase in unpredictable global climatic changes, together with weather patterns, has led to the massive dip in tourism in many areas (Okuyama, 2018, P. 47). Serious disasters like tsunamis, earthquakes, and hurricanes have a long-term impact on the lives of human beings, infrastructure, natural environment, and the economy. Hurricanes and tsunamis have the largest effects on the tropical coastal regions, which at times happen to be the perfect tourist destination (Seraphin, 2018, P. 6). The physical, monetary and emotional side impacts of this disaster are long-lasting, and they have a destructive effect on tourism in such areas. In case of tsunamis and hurricanes, there are few precautionary measures taken. There is inadequate warning to stop tourist from cancelling travel reservations and forgoing their trip before the calamity strikes (Pearce, 2017, P. 17). The storm path can be traceable online in the case of hurricanes, and this data can be used to warn the tourist so that they may cancel their plans in advance. After the disaster strikes, the region may not be able to accommodate tourist due to the destruction of infrastructure, effect on the mentality and stability of the tourists. Such impacts can be constraining for tourists because they may have the assumption that the area has not recovered from the calamity and most of the tourists do not want to be in disaster-hit regions. An example, in this case, is the period after Japan suffered from tsunami and earthquake in 2012, the nation tried to boost the perception of the public through offering tens of thousands of free airfare to boost the faith in tourists. As an additional point, a natural disaster can do excessive damages to the natural environment and physical sceneries like beaches which are the common destinations for most tourists.Basing our argument on climate and its effect on aviation, we shall consider the consequential rise in sea level. The increase in sea level is caused by the increased melting of the glaciers, ice caps, and the thermal expansions of oceans. In areas with tropical storms, sea-levels rise, storm surges, and strong monsoons linked with intense extra-tropical cyclones; pose as a threat to the sustainability of airports in these coastal locations (Capoccitti et al., 2010, P. 63). The effects caused by storms can lead to flooding; an example is in Myanmar during the times of the tropical storms, and this makes the planning of new airfields difficult.TechnologyTechnology is a factor that influences how any form of business operates; this implies that any changes in technology affect the whole operating process of a firm. Over the years, tourism and aviation occupations have increasingly developed due to the increase in development of new technologies. Considering a global scale, for example, technology has been able to change the way tourism organizations operate therefore bringing to front new understandings. Inventions in aviation like the twin-engine aircraft have allowed a large number of tourists to travel to various destinations (Duval, 2013, P. 500). Similarly, the improvements in communication technology have made airlines accessible from the promotion of destinations to attract tourists. Also, it has made payment collection more efficient.Political StabilityResearch done has proved that there is a negative association between political uncertainty and tourism (Nunkoo & Gursoy, 2017, P. 326). Implications are that; when political instability of a country is high, the tourism industry is adversely affected. A study collected from 102 hotel directors and 73 travel organizations in Ukraine proved that; there is a differential effect of political uncertainty on the travel agencies and housing establishments (Saha et al, 2017, P. 227).Cultural DiversityLooking at the social-cultural impacts on tourism, there can be instances of cultural clashes that happens because; tourism majorly involves the movement of people to diverse places. So, it leads to the development of social relationships among the persons who interact. Cultural clashes occur due to differences in culture, values, languages, ethnic beliefs, and religious groups (Coulthard et al, 2017, P. 306). In the same way, the crime level will increase, and this is because; the presence of a large number of tourists who spend a lot and who carry valuable goods.ConclusionIn conclusion, various factors affect global tourism and aviation. Tourism is one of the main sources of revenue to most countries. Therefore, various efforts must be taken by the government to enhance and promote tourism. Improvements in the aviation sector can ensure that there is an adequate number of airplanes which may be used for travelling purposes by the tourist. Also, the airplanes will be safe and secure for travelling purposes. Similarly, for those regions which are victims of natural calamities, precautionary measures can be taken to ensure that tourist is not affected by these natural occurrences.ReferenceCapoccitti, S., Khare, A. and Mildenberger, U., 2010. Aviation industry-mitigating climate change impacts through technology and policy. 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