One of the most essential things for tourism to be successful in a particular place is the quality of the environment, both natural and man-made. However tourism involves many activities that have a negative effect on the environment. These occur when the level of usage is bigger than the amount of caring for the environment. Uncontrolled tourism is threatening many natural areas around the world. It can put great pressure on an area, and lead to negative environmental impacts on air and water quality, vegetation, soil, wildlife, and many other things.
One of the most important areas of tourism is transportation. Transport by air, road and rail is rising steadily because of the increasing number of tourists. One consequence of this is that tourism is responsible for a large amount of air transmissions. These emissions, as well as those from the production of electricity, another important tourist need, are linked to acid rain, chemical pollution and global warming. They contribute to severe air pollution, not only in cities but in natural environments as well. Some of these impacts are directly related to tourism. For example, in very hot or cold conditions, tour buses often leave their motors running while the tourists go out on excursions so that the bus is at a comfortable temperature when they return.
Another negative effect of tourism is water quality. Bushwalkers can damage small streams by walking through them too many times, causing them to be muddy which then in turn makes it difficult for small fish to feed. Also, less experienced bushwalkers sometimes like to pursue activities such as washing their hair in small creeks and streams, sending chemicals in shampoo and conditioner downstream and further damaging the environment.
However, not all effects of tourism are long term. The most common impact of tourism is litter, and its effect is almost instant. Litter is a serious problem in areas with high concentrations of tourist activities and...
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