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2022
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ABSTRACT The actual COVID 19 pandemic has been taking the general attention in the last two years, and the overall debate of the global scenario and sustainable development faded. In fact many other factors are to be considered to foresee what can be expected in the next future. Surely demography is a main element to take in account, together with the huge migration flows that are ongoing all around the world in the last decades. Also if the growth of global population is now slower, a peak will be reached in the 2060 about, for then stabilize and perhaps decrease. mainly due to a lower fertility rate, the trends are different in the continents. Meanwhile we will assist a decrease in Europe, Oceania and other developed countries, and a stand-by in Latin America and some Asian, as China, a real demographic explosion is expected in sub-Saharan Africa, whose population will have doubled by 2050. To these phenomena, that are not substantially affected by the pandemic, and will continue if there are not some unexpected catastrophes, have to be added the huge migration flows that are moving millions of persons from marginal areas and poorest countries to other continents, determining further changes in he local demographic structures. Most of global population is expected to be urbanized, and also the migrant flows are concentrated into the big metropolitan areas, mostly of Asia and Africa, living in significant quota in slums or precarious settlements with a unacceptable quality of life. Therefore, is necessary a profound shift of global vision and change in the global model to maintain as much as possible population in their native areas, and mitigate the urbanization process, issues that will are deepened in the ecology sessions.
Environmental and Resource Economics, 2013
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1991
The following preliminary calculations are part of a larger effort of IIASA's Population Program to review the state of interdisciplinary thinking today concerning future trends in fertility, mortality, and migration in the main regions of the world. Alternative views about ...
European Journal of Population / Revue européenne de Démographie, 2006
Recent tragedy on the rim of the Indian Ocean has once more reminded us that the world is finite and one, and that natural phenomena are the fastest vectors of globalization. But natural factors are increasingly affected by the collective action of human beings. Their growing numbers and sustained activities combine into an expanding force that changes many of the parameters of the ecosystem. Hence the need to look way ahead and produce population scenarios that are distant from us not years or decades, but centuries, feeding the growing hunger for global models of the ecosystem. Future patterns of land use, water consumption, air pollution, climate change are closely related to population trends. Moreover, in the long run, demographic variables themselves are density-dependent: so are the opportunities for new diseases to surge and spread throughout the planet, push and pull forces that determine migratory streams and even fertility levels and preferences, as one of the authors (Lutz) has recently shown. We need, therefore, to explore the distant future and not only the decades to come. The United Nations have recently produced a set of population projections to the year 2300; Lutz, Sanderson and Scherbov do not go that far, but they lead us in a fascinating voyage throughout the next century. A voyage in the company of a distribution of 2000 growth paths for each one of 13 regions in which they divide our planet, and for the world itself. Modern tools of computation allow them to abandon the traditional approach, consisting in identifying the 'most likely' future paths of fertility, mortality and (less frequently) migration, in order to calculate a 'central' or 'medium' variant of population change, encased between 'low' and 'high' boundaries that reflect plausible-but rather improbable-extreme scenarios. This book's approach is different: by discussing expert opinion on, say, fertility, they do set, for a given date, a mean value and fit around this a normal distribution, specifying the values within which lies 80 percent of the distribution. For instance, for low fertility countries (except North America) in 2025-29, the mean TFR is 1.7 and the 80 percent range is supposed to be comprised between 1.2 and 2.2; for Sub-Saharan Africa, the mean is set at 3 and the 80 percent range lies between 2 and 4. Same strategy for mortality: for the
Genus
Since its early debut in Wuhan, China, during winter 2019, the COVID-19 pandemic has devastated human communities all over the world as a global hurricane (Horton, 2021; Lupton & Willis, 2021). Its dramatic impacts on health, on the population, on the economy and on the society as a whole have suddenly put us in touch with tragedies, as the 1918 Spanish flu pandemic and the Great 1929 recession, that we were used to consider as belonging to our history only, especially in western countries (Livi-Bacci, 2017, 2021). Unlike the aforementioned past tragedies, the COVID-19 pandemic has been the first one in mankind history under the lenses of science, being thus entirely monitored, described, and communicated daily to the population, by the tools of statistics. Since the beginning of the story, mass media-from newspapers to newscasts to the internethave been permanently occupied by experts talking about data, graphs and tables communicating to us the daily news from the pandemic battlefield. This certainly had the merit to enable citizens and the entire public opinion to finally familiarize in their daily life with science and its tools, though it also led to somewhat undesired consequences, such as the parallel "infodemia" and related information disorder (Bursztyn et al., 2020; Cinelli et al., 2020). Overall, however, this ubiquitous presence and monitoring by science was not able to avoid that the eventual-direct and indirect-impact of the pandemic, and of its mitigation measures, was catastrophic (Horton, 2021; Lupton & Willis, 2021) and will likely last for a long time in the future. In this nasty scenario, an indisputable merit of the continued focus of science on the pandemic lied in the endless list of scientific questions that were posed and in the resulting unprecedented mobilization of scientific interests and resources. For example, a search on PubMed repository at current date (October 18th, 2021) revealed 187,837 indexed scientific papers including the word "COVID-19" (PubMed 2021). Obviously, many of the raised questions are still un-answered but their investigation is opening formidable tasks for research in almost all scientific fields, including demography. With hindsight, most pre-COVID-19 research on topics as pandemic risk, pandemic
Saber, Ciencia y Libertad, 2018
This research paper is aimed at thinking about the problem that the current demographic scenario means for mankind because of the excessive increase on the birth rates in poorest social class in the globe. This overpopulation is consuming the global resources at a fast pace and it is taking the world to its limits. This paper focuses on the increase of the population in India country 1.350 million inhabitants and more specifically on New Dahli its capital city whose large population is expected to be larger than China population by 2030. This study used the inductive approach to research to analyze the globe cities and its many problems which must become business and migration centers from populations focused on single cities which are making economic poverty, public health, education system and jobs a problem difficult to cope with. This approach allows to be in line with the current demographic scenario which uses the international organization data to monitor the global overpopulation. The results showed that a timely control over birth rates and the citizen´s education might minimize the demographic impact that the world currently experiences. In short, this situation should be regarded as the problem of the century one due to the negative consequences that should be efficiently treated in the ethics, social, politics and human.
This paper contains thoughts on the process of imminent population decline under way in much of the developed world and quite possibly in other world regions as well. We are witnessing the beginnings of a vast trend change which promises to bring to a close a period of population growth that has lasted for several centuries. It can be shown that this great change is a byproduct of the demographic transition which unleashed a number of the forces that have led to where we are today. The extent to which much of the developing world will follow the reproductive trends of the developed world, with their social and economic implications, is discussed. A comparison is made between the foreseeable characteristics of future population reduction and other periods of prolonged population decline in the past. From our vantage point early in the twenty-first century, there is still much to be learned from both the recent and the distant historical record, even though the decades ahead for much of the world will lead us into mostly uncharted territory. The purpose of this paper is to stimulate reflection and debate on a subject that looms as perhaps the key social issue of the twenty-first century.
Nigerian Journal of Health Promotion
ABSTRACT The sustained rapid increase in the world’s population in the 21st Century has really become a source of worry, considering several environmental health issues as well as other social problems that usually characterize large population. This paper therefore, examined the relationships between population size and the environment, population distribution and the environment and population composition and the environment, bringing-out their health implications on individuals. The paper recommends that governments of various countries should initiate and implement measures reflecting changes in population size, population distribution and population composition. Such measures should include effective family planning methods and teaching of sex education at all levels of education to curb the rate of population increase and development of rural areas to curtail rural-urban migration. Keywords: Population; Environment and Health
Philosophical Transactions of the Royal Society B: Biological Sciences, 2010
The total size of the world population is likely to increase from its current 7 billion to 8–10 billion by 2050. This uncertainty is because of unknown future fertility and mortality trends in different parts of the world. But the young age structure of the population and the fact that in much of Africa and Western Asia, fertility is still very high makes an increase by at least one more billion almost certain. Virtually, all the increase will happen in the developing world. For the second half of the century, population stabilization and the onset of a decline are likely. In addition to the future size of the population, its distribution by age, sex, level of educational attainment and place of residence are of specific importance for studying future food security. The paper provides a detailed discussion of different relevant dimensions in population projections and an evaluation of the methods and assumptions used in current global population projections and in particular those p...
Journal of Environmental Studies, 2024
Ecological damage is generally proportional to the population density. The demographic growth contributes to shortages of fresh water and food. Many countries experience water scarcity while agricultural production increases through overexploitation of water resources, deforestation and other environmental damage. Potential solutions would require adoption of new principles, in particular, that no population group on a national or international scale, neither ethnic nor confessional minorities, may obtain advantages because of a faster growth. Relevant demographic problems of the North Caucasus and the eastern Mediterranean are discussed here. Both the mountainous and arid territories are hardly suitable for self-sustaining existence of the dense population. Both regions receive financial support and, at the same time, are sources of emigration. The agriculture in conditions of insufficient water and energy supply is economically and ecologically unfavorable as fossil fuels are used for the water desalination, which is accompanied by greenhouse gas emissions. The energy for desalination could be supplied by nuclear power plants. The weightiest argument against nuclear facilities is that they are potential war targets.Durable peace and international cooperation are needed for this and other humanitarian projects.
Lambert Academic Publishing, Germany
Human beings evolved under conditions of high mortality due to famines, accidents, illnesses, infections and war and therefore the relatively high fertility rates were essential for species survival. In spite of the relatively high fertility rates it took all the time from evolution of mankind to the middle of the 19th century for the global population to reach one billion. The twentieth century witnessed an unprecedented rapid improvement in health care technologies and access to health care all over the world; as a result there was a steep fall in the mortality and steep increase in longevity. The population realized these changes and took steps to reduce their fertility but the decline in fertility was not so steep. As a result the global population has undergone a fourfold increase in a hundred years and has reached about 7 billion.
«Archivio Storico dell'Emigrazione Italiana», 2022
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REALIDAD E IMAGINACIÓN CONTINUAS. FILOSOFÍA, TEOARÍA Y MÉTODOS DE CREACIÓN EN EL CONTINUO , 2024
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Ankara Universitesi Egitim Bilimleri Fakultesi Dergisi, 2021
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Seminario De Pesquisa Em Estudos Linguisticos, 2012
Boletín. Instituto Español de Oceanografía, 2010
Hrvatski Casopis Za Odgoj I Obrazovanje, 2013