Along with the loss of farmland, there is a loss of wildlife habitats that are disappearing due to urban sprawl. These forests, meadows, and wetlands are disappearing and being substituted with pavement, buildings, and sterile urban landscaping. This loss of wildlife habitats make it hard for species to survive and makes it difficult for them to find suitable breeding ponds, hibernation sites, feeding locations, and to create practical nesting areas . The urban sprawl has been so bad in some places that species of plants are becoming nearly extinct. For example, the Oak Savannas and the Oak and Pine Barrens both have been degraded to the point that there is less than 1 percent of the original species still around .
Urban sprawl has contributed greatly to air and water pollution as well as increased water and energy consumption. Since urban sprawl places people outside of walking distance to shopping areas and work areas, they are forced to rely heavily on cars to get from point A to point B. This over reliance on vehicles has contributed significantly to air pollution and greenhouse gases . Pollution from vehicles is usually the number one cause of pollution in many urbanized cities, such as Los Angeles. Another thing to think about would be the recent heat waves that have been experienced in the past month across the nation. People fail to realize that urban sprawl and pollution, which is a by-product of urban sprawl, have contributed significantly to the high temperatures this summer . Urban sprawl increases the amount of concrete and asphalt, thus holding in the heat and making it even warmer than it would have been had sprawl not occurred. Another part of this would be that the pollution leads to higher levels of humidity in the air and in turn exaggerates the effects of greenhouse gases .
【雅思写作素材:城市扩张相关介绍】相关文章:
最新
2016-10-19
2016-06-13
2016-06-13
2016-06-13
2016-06-13
2016-06-13