How Far Does the Concept of a Green Belt Have Continuing Relevance in the 21st Century?

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Definitions, Purposes & History of Green Belt
Green belt or greenbelt is defined as an area that is reserved for undeveloped or agricultural land to protect the urban areas of large cities. It is an essential element of national planning policy to control the development of urban areas. Green belt is usually laid out in Local Plan by local planning authorities (Green Belt UK Politics, 2009).
Green belt have a series of significant purposes or functions for improving the life quality of humans. For natural environmental aspect, it could protect natural environment, and, to some extent, improve air quality of urban areas. In addition, protecting habitats for wild animals is another function. Green belt provides open space for
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No buildings are allowed to build in green belt, unless those buildings which are for agricultural purposes. Consequently, green belt area could protect natural environment for the future. The unique landscape could be kept by green belt as well as smaller towns. All the purposes seem to be achieved.
Because of the benefits of green belt, the government tries to enhance the development of green belt. However, it does not have same effect to all the places.
Negative Impact of Green Belt
Actually, despite of the benefits of green belt brought for humans and environment, a series of problems and disadvantages of green belt come out as well. The environmental problems, which were expected to be solved by green belt, are still unsolved. For instance, some green belt areas are designed for intensive agricultural use. However, they could not provide clean air or other benefits for residents, even worse that they could harm people’s health and environment, because of the pesticides used within the areas. It may cause more environmental problems, such as green house effect. The green belt could stop the urban sprawl. However, it could also affect the normal expansion of the urban areas. Because of the poor public transport design within the green belt, people require more private cars to travel from the communities outside of the green belt to the inside urban centres. That kind of way to travel is not environmental friendly, which causes more pollution. In addition,

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