This paper analyzes recent developments in urban marginality along Mexico’s northern border. The northern border in the last two decades has undergone a significant economic transformation as well as an explosive population growth. The paper emphasizes that in spite of impressive economic indicators border cities in Mexico urban marginality continue; that is, economic gains have not trickled do...

The conversion of Earth's land surface to urban uses is one of the most irreversible human impacts on the global biosphere. It drives the loss of farmland, affects local climate, fragments habitats, and threatens biodiversity. Here we present a meta-analysis of 326 studies that have used remotely sensed images to map urban land conversion. We report a worldwide observed increase in urban land a...

BECAUSE THE YEAR 2000 figures prominently in urban population projections , it is timely to assess whether the United Nations' earliest projections of urban population growth in developing countries, made in the 1970s, have been reasonably accurate, and if not, why. Despite being accompanied by advice to interpret urban population projections with caution and not as forecasts (United Nations 19...

• Most of the urban poor in developing countries spend their lives in insecure, poorly paid jobs • They participate in economic growth, and adjust to economic change, through urban labour markets • Pro-poor urbanisation requires labour intensive growth, supported by labour protection, flexible land use regulation and investments in basic services U rbanisation is taking place on a massive scale...

1. Urban Development 1.1. Increase of Urban Population 1.2. Size of Cities 1.3. Growth of Slums 2. Health Implications of Urban Growth 2.1. urban Characteristics of Health 2.1.1. Urban Health Hazards 2.1.2. The Health Transition 2.2. Specific Health Situations in Slum Areas 3. Future Challenges 3.1. Sustainability of Urban Systems 3.2. Aging of Urban Populations Glossary Bibliography Biographic...

The purpose of this paper is to provide a broad overview of the recent patterns and trends of urban growth in developing countries. Over the last 20 years many urban areas have experienced dramatic growth, as a result of rapid population growth and as the world’s economy has been transformed by a combination of rapid technological and political change. Around 3 billion people—virtually half of ...

• Most of the urban poor in developing countries spend their lives in insecure, poorly paid jobs • They participate in economic growth, and adjust to economic change, through urban labour markets • Pro-poor urbanisation requires labour intensive growth, supported by labour protection, flexible land use regulation and investments in basic services U rbanisation is taking place on a massive scale...

"The population of China is still growing despite a dramatic decline in fertility in the past two decades. There are marked urban-rural differentials in fertility and, as a result, the pace of urbanization has significant effects on population growth. In this research an attempt is made to model urban-rural population growth in China. A demoeconomic model of urban and rural sectors is calibrate...

Urban planning is a very important issue to guarantee the sustainable development of modern towns. Many aspects must be considered and one of the most important is the population growth. Having a correct control of this phenomenon it is possible to focus the efforts, resources and investments in the right direction. To anticipate the facts and as a consequence predict the advantages and problem...