Download or read book How Many People Can the Earth Support written by Joel E. Cohen and published by W. W. Norton & Company. This book was released on 1996 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses how many people the earth can support in terms of economic, physical, and environmental aspects.

Download or read book World Population Prospects 2019 Highlights written by United Nations Publications and published by . This book was released on 2019-07-23 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United Nations population estimates and projections form a comprehensive set of demographic data to assess population trends at the global, regional and national levels. They are used in the calculation of many of the key development indicators commonly used by the United Nations system, including for more than one third of the indicators used to monitor progress towards the achievement of the Sustainable Development Goals. The 2019 revision of the World Population Prospects is the twenty-sixth edition of the official United Nations population estimates and projections, which have been prepared since 1951 by the Population Division of the Department of Economic and Social Affairs. The 2019 revision presents population estimates from 1950 until the present for 235 countries or areas, which have been developed through country-specific analyses of historical demographic trends. It builds on previous revisions by incorporating additional results from the 2010 and 2020 rounds of national population censuses as well as information from vital registration and recent nationally representative household sample surveys. The 2019 revision also presents population projections to the year 2100 that reflect a range of plausible outcomes at the global, regional and country levels. These Highlights summarise key population trends described by the estimates and projections presented in World Population Prospects 2019.

Download or read book How to Feed the World written by Jessica Eise and published by Island Press. This book was released on 2018-03-15 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: By 2050, we will have ten billion mouths to feed in a world profoundly altered by environmental change. How will we meet this challenge? In How to Feed the World, a diverse group of experts from Purdue University break down this crucial question by tackling big issues one-by-one. Covering population, water, land, climate change, technology, food systems, trade, food waste and loss, health, social buy-in, communication, and equal access to food, the book reveals a complex web of challenges. Contributors unite from different perspectives and disciplines, ranging from agronomy and hydrology to economics. The resulting collection is an accessible but wide-ranging look at the modern food system.

Download or read book World Population and Human Capital in the Twenty First Century written by Wolfgang Lutz and published by Oxford University Press. This book was released on 2017 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: Condensed into a detailed analysis and a selection of continent-wide datasets, this revised edition of World Population & Human Capital in the Twenty-First Century addresses the role of educational attainment in global population trends and models. Presenting the full chapter text of the original edition alongside a concise selection of data, it summarizes past trends in fertility, mortality, migration, and education, and examines relevant theories to identify key determining factors. Deriving from a global survey of hundreds of experts and five expert meetings on as many continents, World Population & Human Capital in the Twenty-First Century: An Overview emphasizes alternative trends in human capital, new ways of studying ageing and the quantification of alternative population, and education pathways in the context of global sustainable development. It is an ideal companion to the county specific online Wittgenstein Centre Data Explorer.

Download or read book The Population Bomb written by Paul R. Ehrlich and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population and Climate Change written by Brian C. O'Neill and published by Cambridge University Press. This book was released on 2005-09-29 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population and Climate Change provides the first systematic in-depth treatment of links between two major themes of the 21st century: population growth (and associated demographic trends such as aging) and climate change. It is written by a multidisciplinary team of authors from the International Institute for Applied Systems Analysis who integrate both natural science and social science perspectives in a way that is comprehensible to members of both communities. The book will be of primary interest to researchers in the fields of climate change, demography, and economics. It will also be useful to policy-makers and NGOs dealing with issues of population dynamics and climate change, and to teachers and students in courses such as environmental studies, demography, climatology, economics, earth systems science, and international relations.

Download or read book Beyond Six Billion written by National Research Council and published by National Academies Press. This book was released on 2000-10-11 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Population Growth and Economic Development written by National Research Council and published by National Academies Press. This book was released on 1986-02-01 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses nine relevant questions: Will population growth reduce the growth rate of per capita income because it reduces the per capita availability of exhaustible resources? How about for renewable resources? Will population growth aggravate degradation of the natural environment? Does more rapid growth reduce worker output and consumption? Do rapid growth and greater density lead to productivity gains through scale economies and thereby raise per capita income? Will rapid population growth reduce per capita levels of education and health? Will it increase inequality of income distribution? Is it an important source of labor problems and city population absorption? And, finally, do the economic effects of population growth justify government programs to reduce fertility that go beyond the provision of family planning services?

Download or read book Polling Matters written by Frank Newport and published by Grand Central Publishing. This book was released on 2004-07-30 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: From The Gallup Organization-the most respected source on the subject-comes a fascinating look at the importance of measuring public opinion in modern society. For years, public-opinion polls have been a valuable tool for gauging the positions of American citizens on a wide variety of topics. Polling applies scientific principles to understanding and anticipating the insights, emotions, and attitudes of society. Now in POLLING MATTERS: Why Leaders Must Listen to the Wisdom of the People, The Gallup Organization reveals: What polls really are and how they are conducted Why the information polls provide is so vitally important to modern society today How this valuable information can be used more effectively and more...

Download or read book Concepts of Biology written by Samantha Fowler and published by . This book was released on 2018-01-07 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concepts of Biology is designed for the single-semester introduction to biology course for non-science majors, which for many students is their only college-level science course. As such, this course represents an important opportunity for students to develop the necessary knowledge, tools, and skills to make informed decisions as they continue with their lives. Rather than being mired down with facts and vocabulary, the typical non-science major student needs information presented in a way that is easy to read and understand. Even more importantly, the content should be meaningful. Students do much better when they understand why biology is relevant to their everyday lives. For these reasons, Concepts of Biology is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand.We also strive to show the interconnectedness of topics within this extremely broad discipline. In order to meet the needs of today's instructors and students, we maintain the overall organization and coverage found in most syllabi for this course. A strength of Concepts of Biology is that instructors can customize the book, adapting it to the approach that works best in their classroom. Concepts of Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand--and apply--key concepts.

Download or read book The Limits of Growth written by D. H. Meadows and published by . This book was released on 1974 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Colloquium on Plants and Population written by Joel E. Cohen and published by National Academies Press. This book was released on 1999-01-01 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book More written by Robert Engelman and published by Island Press. This book was released on 2010-08-30 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the capital of Ghana, a teenager nicknamed “Condom Sister” trolls the streets to educate other young people about contraception. Her work and her own aspirations point to a remarkable shift not only in the West African nation, where just a few decades ago women had nearly seven children on average, but around the globe. While world population continues to grow, family size keeps dropping in countries as diverse as Switzerland and South Africa. The phenomenon has some lamenting the imminent extinction of humanity, while others warn that our numbers will soon outgrow the planet’s resources. Robert Engelman offers a decidedly different vision—one that celebrates women’s widespread desire for smaller families. Mothers aren’t seeking more children, he argues, but more for their children. If they’re able to realize their intentions, we just might suffer less climate change, hunger, and disease, not to mention sky-high housing costs and infuriating traffic jams. In More, Engelman shows that this three-way dance between population, women’s autonomy, and the natural world is as old as humanity itself. He traces pivotal developments in our history that set population—and society—on its current trajectory, from hominids’ first steps on two feet to the persecution of “witches” in Europe to the creation of modern contraception. Both personal and sweeping, More explores how population growth has shaped modern civilization—and humanity as we know it. The result is a mind-stretching exploration of parenthood, sex, and culture through the ages. Yet for all its fascinating historical detail, More is primarily about the choices we face today. Whether society supports women to have children when and only when they choose to will not only shape their lives, but the world all our children will inherit.

Download or read book Global Population and Reproductive Health written by Deborah R. McFarlane and published by Jones & Bartlett Publishers. This book was released on 2014-07-18 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world population surpassed the seven billion mark in 2011, yet many women and couples still lack access to reproductive health services. These facts have profound implications for maternal and child health, environmental quality, and food security. Global Population and Reproductive Health provides an introduction to an important and timely public health topic. The text is unique in that it explores the inextricable link between population and reproductive health – a connection that is often overlooked – as well as their impact on global and local environmental issues. Students will come away with a clear understanding of the relationships among all these issues, and the vital need for integrated policies and international cooperation. Contents Include: 1. Overview 2. Measures and Theories 3. Health 4. Related Issues 5. Policies

Download or read book Population Land Use and Environment written by National Research Council and published by National Academies Press. This book was released on 2005-10-15 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population, Land Use, and Environment: Research Directions offers recommendations for future research to improve understanding of how changes in human populations affect the natural environment by means of changes in land use, such as deforestation, urban development, and development of coastal zones. It also features a set of state-of-the-art papers by leading researchers that analyze population-land useenvironment relationships in urban and rural settings in developed and underdeveloped countries and that show how remote sensing and other observational methods are being applied to these issues. This book will serve as a resource for researchers, research funders, and students.

Download or read book Empty Planet written by Darrell Bricker and published by Signal. This book was released on 2019-02-05 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the authors of the bestselling The Big Shift, a provocative argument that the global population will soon begin to decline, dramatically reshaping the social, political, and economic landscape. For half a century, statisticians, pundits, and politicians have warned that a burgeoning planetary population will soon overwhelm the earth's resources. But a growing number of experts are sounding a different kind of alarm. Rather than growing exponentially, they argue, the global population is headed for a steep decline. Throughout history, depopulation was the product of catastrophe: ice ages, plagues, the collapse of civilizations. This time, however, we're thinning ourselves deliberately, by choosing to have fewer babies than we need to replace ourselves. In much of the developed and developing world, that decline is already underway, as urbanization, women's empowerment, and waning religiosity lead to smaller and smaller families. In Empty Planet, Ibbitson and Bricker travel from South Florida to Sao Paulo, Seoul to Nairobi, Brussels to Delhi to Beijing, drawing on a wealth of research and firsthand reporting to illustrate the dramatic consequences of this population decline--and to show us why the rest of the developing world will soon join in. They find that a smaller global population will bring with it a number of benefits: fewer workers will command higher wages; good jobs will prompt innovation; the environment will improve; the risk of famine will wane; and falling birthrates in the developing world will bring greater affluence and autonomy for women. But enormous disruption lies ahead, too. We can already see the effects in Europe and parts of Asia, as aging populations and worker shortages weaken the economy and impose crippling demands on healthcare and social security. The United States is well-positioned to successfully navigate these coming demographic shifts--that is, unless growing isolationism and anti-immigrant backlash lead us to close ourselves off just as openness becomes more critical to our survival than ever before. Rigorously researched and deeply compelling, Empty Planet offers a vision of a future that we can no longer prevent--but one that we can shape, if we choose.

Download or read book How Population Change Will Transform Our World written by Sarah Harper and published by Oxford University Press. This book was released on 2016-07-20 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting the shape of our future populations is vital for installing the infrastructure, welfare, and provisions necessary for society to survive. There are many opportunities and challenges that will come with the changes in our populations over the 21st century. In this new addition to the 21st Century Challenges series, Sarah Harper works to dispel myths such as the fear of unstoppable global growth resulting in a population explosion, or that climate change will lead to the mass movement of environmental refugees; and instead considers the future shape of our populations in light of demographic trends in fertility, mortality, and migration, and their national and global impact. How Population Change Will Transform Our World looks at population trends by region to highlight the key issues facing us in the coming decades, including the demographic inertia in Europe, demographic dividend in Asia, high fertility and mortality in Africa, the youth bulge in the Middle East, and the balancing act of migration in the Americas. Harper concludes with an analysis of global challenges we must plan for such as the impact of climate change and urbanization, and the difficulty of feeding 10 billion people, and considers ways in which we can prepare for, and mitigate against, these challenges.