URBANZIATION AND ENVIRONMENT
Urbanization and the Environment . The growth in world population has an important human-environmental interaction: While the world's population is doubling, the world's urban population is tripling. Within the next few years, more than half the world's population will be living in urban areas
. Both the increase in and the redistribution of the earth's population affect the natural systems of the earth and the interactions between the urban environments and populations.
Urban populations interact with their environment. Urban people change their environment through their consumption of food, energy, water, and land. And in turn, the polluted urban environment affects the health and quality of life of the urban population.
People who live in urban areas have very different consumption patterns than who live in rural areas For example, urban populations consume much more food, energy, and durable goods than rural populations. In China during the 1970s, the urban populations consumed more than twice as much pork as the rural populations who were raising the pigs. In India where many urban residents are vegetarians, greater prosperity is seen in higher consumption of milk.
Urban populations not only consume more food, but they also consume more durable goods. In the early 1990s, Chinese households in urban areas were two times more likely to have a TV, eight times more likely to have a washing machine, and 25 times more likely to have a refrigerator than rural.
. Energy consumption for electricity, transportation, cooking, and heating is much higher in urban areas than in rural villages. For example, urban populations have many more cars than rural populations per capita. In China the per capita consumption of coal ir towns and cities is over three times the consumption in rural areas.
Population. Urbanization ang Environmental Problems Biosphere: The surface layer of the planet and the surrounding atmosphere. Ecosystems: The mechanisms (plants, animals, and microorganisms) that supply people with the essentials of life
Risk Factors Risk factors identified by ISDR: city growth climate change, environmental degradation more people are living in concentrated urban areas and in slums with poor building standards and a lack of facilities . urban migrants tend to settle on exposed stretches of land either on seismic faults, flooding plains or on landslide-prone slopes
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