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Author: United States. Bureau of the Census
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 602
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Book Description
Author: United States. Bureau of the Census
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 602
Get Book
Book Description
Author:
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 124
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Book Description
Author:
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 64
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Book Description
Author:
Publisher: New York : United Nations, Department of Economic and Social Affairs
ISBN:
Category : Political Science
Languages : en
Pages : 258
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Book Description
Based on the 2002 Revision, the Population Division has adopted 2 major innovations for this new set of long-range population projections. For the first time the long-range projections are made at the national level and the time horizon for the projections is extended to 2300.
Author: Julio A Gonzalo
Publisher: World Scientific
ISBN: 9813141018
Category : Political Science
Languages : en
Pages : 176
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Book Description
World Population: Past, Present, & Future uses a multidisciplinary approach to investigate in depth on important aspects of the evolution of world population not well addressed previously. The authors from the Universidad Autonoma, Madrid (Spain), professors Julio A Gonzalo, Manuel Alfonseca, and Félix-Fernando Muñoz, point out that the recent pronounced growth in world population (accompanied by an even more pronounced growth in agricultural production) was due mainly to the increase of life expectancy and not to the (inexistent) growth in fertility rate. Using a "rate equations" approach for the first time, they describe population trends and forecast the possibility of steps up (or down) in population rather than the exponential growth predicted by UN demographers around 1985 and thereafter. This book provides a new perspective that our planet is not overpopulated and could, in fact, house a considerably larger population. Contents:ForewordContentsPopulation, the Economy, and the Environment:Introductory ConsiderationsThe Earth as a Privileged PlanetMathematical Descriptions of Population TrendsWorld Population Growth: 1900–2010: The UN DataWorld Economic Expansion: 1945–1990Energy, Population and the EnvironmentIs the Earth Overpopulated?:Abortion and Population ControlGovernment Family Planning Now and in the FutureThe Rhetoric of Population Control: Does the End Justify the Means?Rate Equations Approach and the Future of World Population:Using a Rate Equations Approach to Model World Population TrendsProspects of World Population Slow DownFalling Birth Rates and World Population Projections: A Quantitative Discussion (1950–2050)Quantitative Estimates of the Future World Population DeclineMalthus's Mistake Readership: Undergraduates and graduates interested in demography and those who are keen to examine demographic trends, population theories and policy interventions.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069904
Category : Social Science
Languages : en
Pages : 369
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Book Description
Is rapid world population growth actually coming to an end? As population growth and its consequences have become front-page issues, projections of slowing growth from such institutions as the United Nations and the World Bank have been called into question. Beyond Six Billion asks what such projections really say, why they say it, whether they can be trusted, and whether they can be improved. The book includes analysis of how well past U.N. and World Bank projections have panned out, what errors have occurred, and why they have happened. Focusing on fertility as one key to accurate projections, the committee examines the transition from high, constant fertility to low fertility levels and discusses whether developing countries will eventually attain the very low levels of births now observed in the industrialized world. Other keys to accurate projections, predictions of lengthening life span and of the impact of international migration on specific countries, are also explored in detail. How good are our methods of population forecasting? How can we cope with the inevitable uncertainty? What population trends can we anticipate? Beyond Six Billion illuminates not only the forces that shape population growth but also the accuracy of the methods we use to quantify these forces and the uncertainty surrounding projections. The Committee on Population was established by the National Academy of Sciences (NAS) in 1983 to bring the knowledge and methods of the population sciences to bear on major issues of science and public policy. The committee's work includes both basic studies of fertility, health and mortality, and migration; and applied studies aimed at improving programs for the public health and welfare in the United States and in developing countries. The committee also fosters communication among researchers in different disciplines and countries and policy makers in government, international agencies, and private organizations. The work of the committee is made possible by funding from several government agencies and private foundations.
Author:
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 84
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Book Description
Author: Paul R. Ehrlich
Publisher:
ISBN: 9781568495873
Category : Social Science
Languages : en
Pages : 0
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Book Description
Author: C.J. Mode
Publisher: Springer Science & Business Media
ISBN: 364282322X
Category : Mathematics
Languages : en
Pages : 405
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Book Description
According to a recent report of the United States Census Bureau, world population as of June 30, 1983, was estimated at about 4. 7 billion people; of this total, an estimated 82 million had been added in the previous year. World population in 1950 was estimated at about 2. 5 billion; consequently, if 82 million poeple are added to the world population in each of the coming four years, population size will be double that of 1950. Another way of viewing the yearly increase in world population is to compare it to 234 million, the estimated current population of the United States. If the excess of births over deaths continues, a group of young people equivalent to the population of the United States will be added to the world population about every 2. 85 years. Although the rate of increase in world population has slowed since the midsixties, it seems likely that large numbers of infants will be added to the population each year for the foreseeable future. A large current world population together with a high likelihood of sub stantial increments in size every year has prompted public and scholarly recognition of population as a practical problem. Tangible evidence in the public domain that population is being increasingly viewed as a problem is provided by the fact that many governments around the world either have or plan to implement policies regarding population. Evidence of scholarly concern is provided by an increasing flow of publications dealing with population.
Author: United Nations Publications
Publisher:
ISBN: 9789211483192
Category : Political Science
Languages : en
Pages : 124
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Book Description
The report presents findings from the 2018 revision of World Urbanization Prospects, which contains the latest estimates of the urban and rural populations or areas from 1950 to 2018 and projections to 2050, as well as estimates of population size from 1950 to 2018 and projections to 2030 for all urban agglomerations with 300,000 inhabitants or more in 2018. The world urban population is at an all-time high, and the share of urban dwellers, is projected to represent two thirds of the global population in 2050. Continued urbanization will bring new opportunities and challenges for sustainable development.
