“Of all the issues we face as the new millenium approaches, none is more important than population growth. The numbers speak for themselves. Earth’s population, which totaled 1.7 billion people in 1900, is now nearly 6 billion - and growing.“ (National Geography, 4) In the 20th century the population tripled, and it’s expected to double in the next 50 years (Hager, 12). Big metropolis like New York, Tokyo, New Delhi, São Paulo, and Paris are getting bigger everyday, …showed first 75 words of 2043 total…

…showed last 75 words of 2043 total…Population shifts – future chalenge is here” Christian Science Monitor 197.90 (Sep. 98): 11. 14 Nov. 1998 Malthus, Thomas. “Human Population Growth” Ch.16. 21 October 1998 Microsoft Encarta Virtual Globe. “Population Growth”. Negative Population Growth. 21 Oct. 1998 Parfit, Michael. “Human Migration” National Geographic 194 (Oct 1998):4. Reid, T. R.. “Feeding the Planet” National Geographic 194 (Oct 1998):4. Zero Population Growth 14 Nov. 1998