Zanzibar is one of the smallest participants in the United Nations Sustainable Cities Program. As Zanzibar is a relatively compact urban area with just over 200 000 residents and without substantial industrial pollutants, the task of making it “sustainable” would appear at first pass to be fairly uncomplicated. Zanzibar benefits from a significant government commitment to environmental policy a...

Globalization and market reforms have significantly facilitated urban transition and urbanization in the People’s Republic of China, greatly affecting the structural and spatial redistribution of Chinese cities since the founding of the People’s Republic in 1949. Prior to the 1978 economic reforms, the system of cities created by the Maoist regime was dominated by large and extra-large cities b...

the shape of urban development and its impact on economic growth is one of the most important issues in urban economic literature. in accordance to the corresponding theory, economic growth and urban concentration have an inverse-u shape relation. the shape of urban development is related to how resources are spread out in existing cities of an urban system and investigated under the term of ur...

By shouldering the burden of a big chunk of global production, and giving Shelter to half of the world’s population, currently cities play an important role in national economies. Benefits of agglomeration in cities have played a major role in the process of economic development of different countries, however, the expansion of urbanization has produced some problems including environmental and...

introduction no2 is not only a potential air pollutant in urban and industrial environments but also a precursor for smog of urban environment that is another ozone pollutant as well. some of the urban environments in iran have high tropospheric and near surface no2 which requires research attentions especially in these years. that is the issue of concern in the present study using satellite da...