ENVIRONMENTAL PROTECTION AGENCY STRATEGY FOR REDUCING HEALTH RISKS IN URBAN AREAS
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ENVIRONMENTAL PROTECTION AGENCY STRATEGY FOR REDUCING HEALTH RISKS IN URBAN AREAS
Chapter one
INTRODUCTION
1.1 Background of the Study
Today, there is little doubt that the globe is becoming more urban, and the twentieth century saw fast and unprecedented urbanisation of the global population.
The worldwide urban population grew from 13% in 1900 to 29% in 1950 and 49% in 2005, with 60% of the world’s population expected to reside in cities by 2030.
This trend reflects the growth of the urban population, which climbed from 220 million in 1900 to 732 million in 1950 and is anticipated to reach 4.9 billion by 2030 (annual urban growth rate of 1.8%).
Almost majority of this expansion will occur in low-income regions of Africa and Asia, where the urban population is expected to treble and more than double.
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