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Topic: Population growth

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	Population - Wikipedia, the free encyclopedia
		In biology, plant and animal populations are studied, in particular, in a branch of ecology known as population biology, and in population genetics.
		Populate, as a verb, means the process of populating a geographic area, as by procreation or immigration.
		Population transfer is a term referring to a policy by which a state forces the movement of a large group of people out of a region, most frequently on the basis of their ethnicity or religion.
	en.wikipedia.org /wiki/Population (1653 words)

	Population Growth (Site not responding. Last check: 2007-11-07)
		Growth rates of 1.9 percent and higher mean that populations would double in about 36 years, if these rates continue.
		Population doubling time is useful to demonstrate the long-term effect of a growth rate, but should not be used to project population size.
		Growth rate: The number of persons added to (or subtracted from) a population in a year due to natural increase and net migration; expressed as a percentage of the population at the beginning of the time period.
	www.prb.org /Content/NavigationMenu/PRB/Educators/Human_Population/Population_Growth/Population_Growth.htm (1284 words)

	DEPweb: PGR Text 1
		Population growth rate (PGR) is the increase in a country’s population during a period of time, usually one year, expressed as a percentage of the population at the start of that period.
		Due to the slowing of birth rates, population growth rates have started to decline in the many countries, although they still remain high in some countries because birth rates have not fallen as rapidly as death rates.
		As Chart 2 shows, population growth rate still tends to be higher in low- and middle-income countries than in high-income countries.
	www.worldbank.org /depweb/english/modules/social/pgr (428 words)

	FrontPage magazine.com :: Immigration and Population Growth by Robert Locke (Site not responding. Last check: 2007-11-07)
		Annual population growth rate at the end of the decade was roughly half that at the beginning.
		This record population growth was a special phenomenon reflecting pent-up pressures from the Depression and the war.
		The growth rate at the end of the decade was a third lower than at the beginning.
	www.frontpagemag.com /Articles/ReadArticle.asp?ID=2478 (1630 words)

	Population Resource Center
		Furthermore, a rapid increase in the population of a country with small when per capita emissions can contribute to high national emissions later, when population growth may have slowed or stopped altogether and per capita emissions continue to rise (Engelman 1998).
		Population is not specifically referenced in the Kyoto Protocol, but it is factor that will play a major role both in terms of compliance with the Protocol and with respect to future climate policy negotiations.
		The combined effects of population growth and climate change are likely to produce shortages that result in the exploitation of environmentally sensitive areas such as hillsides, flood plains, coastal areas, and wetlands.
	www.prcdc.org /summaries/climateupdate02/climateupdate02.html (1738 words)

	Population growth - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-07)
		Population growth is changing of the amount of population over time.
		The term is often used informally in place of "Population growth rate".
		The Magnitude Of Population Growth And Its Consequences (http://www.populationmedia.org/issues/issues.html)
	www.redondobeach.us /project/wikipedia/index.php/Population_growth (124 words)

	Population And The Environment: A Bibliography (Site not responding. Last check: 2007-11-07)
		Though the contributors seem to basically agree that both population growth and industrial development are harming the environment, they sometimes differ in their analysis of the problems as well as their suggestions for solutions.
		With population and pollution increasing dramatically, urgent steps are needed to stop and possible reverse population growth and decrease "throughput," that is, use of energy and natural resources and their associated environmental degradation.
		He notes that population growth has slowed in the industrialized countries, but feels that it is unlikely that the developing countries will be able to control theirs, a situation which will lead to huge numbers of people living lives of misery and starvation.
	egj.lib.uidaho.edu /egj02/groat01.html (10573 words)

	Math in Daily Life -- Population Growth
		To arrive at a reasonable estimate of how the world's population will grow in the next 50 years, you need to look at birth and death rates (the rates at which people are being born and dying in any given period).
		If birth and death rates stayed the same across the years in all parts of the world, population growth could be figured with a fairly simple formula much like the one used to figure compound interest.
		Family planning initiatives, an aging population, and the effects of diseases such as AIDS are some of the factors behind this rate decrease.
	www.learner.org /exhibits/dailymath/population.html (497 words)

	Modeling Population Growth (Site not responding. Last check: 2007-11-07)
		Although populations are discrete quantities (that is, they change by integer amounts), it is often useful for ecologists to model populations by a continuous function of time.
		Populations grow according to the number of individuals that are capable of reproduction.
		At the same time, their growth is limited according to scarcity of land or food, or the presence of external forces such as predators.
	www.geom.uiuc.edu /education/calc-init/population (186 words)

	Population Growth
		Residential population growth in the 1980's and 1990's appears to be leveling off at a rate of slightly less than 20% per decade or approximately 1.77% per year.
		Although the official Reapportionment Commission estimate of residential population as of December 31, 1999 is 93,759, not all of this residential population is connected to the City of Norman wastewater system.
		The "non-residential equivalent population" estimate is then added to the "residential population" estimate to produce a "total equivalent population" estimate for purposes of the study and projections of future needs.
	www.ci.norman.ok.us /government/wastewatercoalition/pop_growth.htm (754 words)

	PAI: Resources: FactSheets: Why Population Matters to Natural Resources (Site not responding. Last check: 2007-11-07)
		Depending on future rates of population growth, between 2.6 billion and 3.1 billion people may be living in either water-scarce or water-stressed conditions by 2025.
		With 4.6 percent of the world 's population, the United States contributed close to 24 percent of all emissions from fossil fuel combustion and cement manufacture, by far the largest CO contributor among nations.
		The population in these biodiversity hotspots is growing at a collective rate of 1.8 percent annually, compared to the world's population 's annual growth rate of 1.3 percent.
	www.populationaction.org /resources/factsheets/factsheet_13.htm (1156 words)

	Zero Population Growth - Adoption Encyclopedia
		The reason for this concern is the alleged overpopulation of our entire planet, which, zero population growth advocates believe, would be resolved if they and many others bore fewer children.
		Zero population growth advocates may be actively involved in the group that formally promotes their philosophy, or they may be informal believers in this concept.
		If many people were zero population growth advocates, then the alleged worldwide overpopulation problem would probably be resolved; however, many people believe in bearing many children or do not believe in using any family planning method, with the end result being they bear many children whether they planned the births or not.
	encyclopedia.adoption.com /entry/zero-population-growth/377/1.html (330 words)

	Introduction
		The term "population growth" refers to how the number of individuals in a population increases (or decreases) with time.
		This growth is controlled by the rate at which new individuals are added to the population -- the birth rate, and the rate at which individuals leave the population -- the death rate.
		Likewise, if the population consists of equal numbers of males and females, and if the females give birth to 3 children each (and the males 0), then the average birth rate of the population will be 1.5.
	www.otherwise.com /population (487 words)

	Exponential Growth
		If a population has a constant birth rate through time and is never limited by food or disease, it has what is known as exponential growth.
		By clicking the Step button you can have the population "step" through one generation of time and see how many individuals are in the population the next generation.
		This is similar to when the population was growing -- the most dramatic change occurs when the population is large.
	www.otherwise.com /population/exponent.html (712 words)

	Population Connection: Learn More (Site not responding. Last check: 2007-11-07)
		After a year of careful review and consideration, the Board of Directors of Zero Population Growth on February 2, 2002 voted unanimously to change the name of our organization to Population Connection, effective May 1, 2002.
		There is a clear connection between population growth and virtually every challenge facing our planet.
		As the leading grassroots population organization, ZPG has been the “population connection” for 34 years.
	www.zpg.org (168 words)

	Human Population Growth
		The spike in deaths in the interval between 1901 and 1926 was caused by the worldwide influenza pandemic of 1918–1919.
		So if a population has a large number of young people just entering their reproductive years, the rate of growth of that population is sure to rise.
		Almost 20% of India's population were children — 15 years or less in age — who had yet to begin reproduction.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/P/Populations.html (1778 words)

	zpg 20
		Overpopulation and rapid population growth are intimately connected with most aspects of the current human predicament, including rapid depletion of nonrenewable resources, deterioration of the environment (including rapid climate change), and increasing national tensions.
		Population growth is likely to be accompanied with increases in hunger, poverty, homelessness, illiteracy, immigration, joblessness, wars for resources, wildlife habitat destruction and environmental degradation.
		Eight of the nine negative population growth rate countries are in the Eastern Bloc, which is economically distressed: people living in them perceive a bleak future.
	www.overpopulation.org /paul.html (5645 words)

	Interesting Facts about Population Growth Mathematical Models
		The mathematical model based on this idea is that the population size for one generation depends on the size of the previous generation, and it is a multiple.
		The logistic growth equation is a useful model for demonstrating the effects of density-dependent mechanisms in population growth.
		This means that the population is now a function of the current population, the population the year before, the year before that, etc. Please note that f implies a generic function and it is different in equation (4) and (5).
	www.arcytech.org /java/population/facts_math.html (3912 words)

	Checks on Population Growth
		The recurrent epidemics of the "fl death" in Europe that began in the fourteenth century caused a sharp decline in population.
		Because of this lag, one might expect that the lemming population would continue to outstrip the weasel population until the lemmings bumped into the carrying capacity of their environment (e.g., availability of food and nesting sites).
		Plotting the growth of a population from an initial growth realization factor of 1 to a final factor of 0 produces a curve like this, called the logistic growth curve or S-shaped curve of growth.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/P/Populations2.html (3620 words)

	Chapter 1: World Population - Major Trends
		Most of this population growth in the developing world will occur during the next 30 years: between 1995 and 2025 the population in developing countries will increase by 2.3 billion; between 2025 and 2050 it will "only" grow by 1.39 billion.
		This exceptionally rapid population growth was fueled by both very high rates of fertility and immigration.
		The UN Population Division estimates that Nigeria's population in 1995 was about 112 million (please note that the UN does not revise their estimate according to the most recent Nigerian census, which was significantly lower.
	www.iiasa.ac.at /Research/LUC/Papers/gkh1/chap1.htm (3008 words)

	BBC News \| UK \| Ethnic birth rate climbs
		In its latest quarterly Population Trends report the ONS estimated the number of people from minority ethnic groups in Britain had hit four million - 7% of the population - for the first time.
		That trend was also reflected among the Asian population with the numbers of people of Bangladeshi origin - whose immigration to the UK peaked in the 1980s - up by a third.
		The average age for the white population surveyed in the 1997-1999 period was 37 or less but only 26 for ethnic minorities.
	news.bbc.co.uk /1/hi/uk/1556901.stm (458 words)

	Population Growth
		The Goal of this webquest is to introduce students to exponential growth in mathematics by using the powerful real-life example of world population.
		If growth continues at the predicted rate, what will the future be like for you and I? Is there any way population growth could slow down?
		Using all the knowledge that you have gained in this exploration of population growth, write a letter to the President of The United States convincing him of the actions he should or should not take to address population growth in the future.
	edweb.sdsu.edu /t2arp/quest/pop/Population_Growth.html (403 words)

	Population Connection
		Fact sheets are an introduction to the connection between population, the environment, and women's empowerment.
		The Campus Program at Population Connection is the resource for university students and faculty concerned with population growth.
		District Activist Network members are the chosen elite that Population Connection relies on to be the local voice for population issues and to represent Population Connection in their community through monthly actions.
	www.populationconnection.org (382 words)

	Population Growth
		First, population growth's role in a few major cultural transformations of the past does not mean that it is essential for all culture change.
		Second, the absence of population growth does not necessarily mean the absence of population pressure.
		Indeed, Thomas Robert Malthus believed that populations, when they do stabilize, do so at a level too high to be easily supported by existing resources, creating constant pressure for culture change.
	www2.truman.edu /~rgraber/cultev/popgro.html (492 words)

	Population Growth
		Population growth is also related to the Fibonacci series.
		Method 2 takes the population of each successive city and divides it by phi.
		In biology, once an egg is fertilized, it divides and multiplies in count until it reaches a point at which the ratio of the succeeding number of cells to the previous number of cells is phi (1.618...).
	goldennumber.net /populatn.htm (321 words)

	03/28/03 - The New York Times’ Big Lie About Population Growth
		According to a recent United Nations report, population growth rates are dropping dramatically round the world.
		Then the Times, referencing the U.N. study, writes that America’s population “is projected to be 409 million in 2050 up from 285 million today.” It must not have checked the Population Clock on www.census.gov.
		In fact, of course, the consensus among labor economists, as established by the National Research Council’s 1997 report The New Americans, is that immigration does not add significantly to Americans’ wealth — and is a significant cost in some states, because of transfer payments like education, emergency room care and welfare.
	www.vdare.com /guzzardi/big_lie.htm (956 words)

	Population Growth Project (Site not responding. Last check: 2007-11-07)
		Amount by which the population of all European Union Countries combined grew in 2000.
		This series of activities explores the mathematical and environmental aspects of population growth.
		Using archived census and demographic data as well as up-to-the-minute population estimates from the U.S. Census Bureau, students will learn how to model population growth and study the implications of a changing population.
	www.k12science.org /curriculum/popgrowthproj/index.html (151 words)

	Urbanization/water quality - Population
		The Atlanta, Ga. area is a good example of a booming urban center as it is one of the fastest growing metropolitan areas in the United States.
		Much of the growth and construction is occurring north of the city, which is where much of the water supply for Atlanta comes from.
		The population of the metro area has more than tripled from the 1 million residents in 1950 to over 3 million today, with no slowdown in sight.
	ga.water.usgs.gov /edu/urbanpop.html (230 words)

	POPULATION GROWTH
		Suppose a census of a population of a currently endangered butterfly species counted 2873 individuals in 1925.
		Carrying Capacity (k) is number of individuals of a population env.
		Populations of marine pelagic tunicate (Thalia democratica) grow at exponential rates in response to phytoplankton plumes
	www.bsu.edu /web/mpyron/11.html (639 words)

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