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In our everyday world, where we are preoccupied with making a living, getting the kids to school, doing the jobs that have to be done, we don't take enough time to appreciate beauty. We don't go out of our way to admire beauty as often as we should. Money is not beautiful, a big income is not beautiful, and the pursuit of wealth is certainly not beautiful.
My impression is that as cities become more crowded so they will become less beautiful, and in consequence, their citizens will loose touch with the peace of mind that natural beauty brings; this can only make them less admirable, less likeable, less happy.
To grow up in the country is to grow up among grasses, shrubs, trees, birds, animals, open spaces. To grow up in what modern cities are becoming is to grow up among buildings, roads, vehicles, noise, exhaust fumes.
Few city people (and not many modern country people either) would know how to tell which direction was which by looking for the position of the Sun in the sky and considering the time of day and year – most of us don't need to know that any more.
In 1997 almost half the world's population (43%) was living in urban areas. For the less developed countries the figure was 36%, while for the more developed countries it was 74%. Before 2010, for the first time ever, the proportion of the worlds people living in cities exceeded half. Three quarters of the citizens of the developed counties live in cities and these people have very little first-hand knowledge of the workings of nature, and that knowledge is likely to become even less in future generations because population densities are growing. While ignorance of, and distance from, nature is growing in a large proportion of the world's people; the mounting environmental problems are showing us that we must modify our life-styles so that they are less damaging to nature.
housing, the city as a dead-end to the phosphate cycle, water supply limitations and the problem of disposing of refuse and sewage from large cities. (See also Why our civilisation is unsustainable.)