The complexity of the interrelationships between population growth and environmental concerns is often obscured when the global picture is presented. Humans impact the environment more than any species. It is not the census figures alone that need to be stressed, but an appreciation of the impact on natural resources of the rapid escalation in the rate of increase of human population in the recent past. Introduction more humans have been added to the worlds population in the past 40 years than in the previous three million keyfitz 1989. The impact of population momentum on future population. In this view the environment is seen not as a factor that limits productivity as population ex. Although this number may not sound alarming, the global population is doubling in less than 50 years cascadia 48. These transformations are not automatic and their extent is influenced by social institutions. Published by tso the stationery of ce and available from.
A statistical summary revised april 22, 2009 introduction. However, no simple relationship exists between population size and environmental change. Start the discussion today with the notion of sustainability. Yet we have just discussed how the environment is affected by population growth, and that certainly sounds like a sociological discussion. While buildings and development provide countless benefits to society, they also have significant environmental and health impacts. An increase in population tends increase in the demand for land, for shelter food, increased demand for energy which led to deforestation, cutting of forests. In particular, population density plays the most important role in shaping the socioeconomic environment. Yet the exact relationshipv between population dynamics and the enironment is complex andv not well understood. In the wild, overpopulation often causes growth in the populations of predators. In this paragraph i am going to show you why humans are cutting and burning down forests and how we can save forests. Human health and environment the huge population pressurizes and degrades the environment physically, chemically and biologically.
T wo hundred years ago in his first essay, thomas malthus argued that. Its purpose in doing so is to deepen scientific and policy dialogue in this area, which is often complex. Population dynamics, environment, and sustainable development in kenyan counties july 28, 2014 the combined effects of climate change and rapid population growth are increasing food insecurity, environmental degradation, and poverty levels in the 47 newlydefined counties in kenya. Rising populations put increasing demands on natural resources such as. Effects of population growth on environment this is not the latest jackpot prize, but 6.
As might be imagined population growth has positive and negative effects on development. The geometric rise in human population levels during the twentieth century is the fundamental cause of the loss of biodiversity. Thats more than seven billion three hundred million bodies that need to be fed, clothed, kept warm and ideally, nurtured and educated. Human population and the environment 215 3 to 4 billion, in 14 years. The effects of overpopulation on the environment the world population reached 6 billion, on october 12, 1999. Land transformations induced by the spatial expansion of agriculture are probably the major route by which population growth has affected features of the natural environment. To understand the impacts of human population growth on biodiversity, a study into it had been carried out in canada. For example, the united states, which contains 5 percent of the worlds population. The uncontrollable population growth issue greatly impacts on the environment. The changes in human environment increases the incidence of many diseases. Its effects are felt on the natural environment also. This report draws from demographic and eniv ronmental literature to examine what is known about the association between population dynamics and the natural environment.
Over 80% of the worlds forests have been destroyed. It it must refer to a specific word in the sentence or the reader can become confused. Population studies center, university of pennsylvania, philadelphia, usa abstract. What is the impact of population on environment and economic. Figure 2vi north east population by age group 2004 and 2029 12 figure 2vii variant population projections for the uk to 2083 based on mid2008 estimates 17 figure 2viii actual and projected population of the united kingdom and constituent countries, 2008. Population ecology is the study of how these populations interact with the environment. Populations in developed countries trend toward using substantially. Many things we do affect the air and the climate we live in. Another effect of overpopulation on environment is air population.
The effects of population on environment and economy are as given below. The state of health of people depends on clean environment. Rising populations put increasing demands on natural resources such as land, water, and energy supplies. Essay on effects of population growth on environment bartleby. As population grow, develop and modify their environment, their activities inevitably affect biodiversity. Biodiversity is earths primary life support system and is a precondition for human survival. The effects of population growth and aging on climate by andy soos oct 18, 2010, 8. Impact of population growth on the environment environmental. Since populations can grow exponentially, resource depletion can occur rapidly, leading to specific environmental concerns such as global warming, deforestation and decreasing biodiversity. The growth of population puts larger demands on our already limited resources. Population dynamics, environment, and sustainable development. The population of our country now ranks 3rd in southeast asia and 14th in the world. According to united nations estimates, the urban population in asia will nearly double in the next 30 years. Human population growth and its effect environmental sciences.
The environmental implications of population dynamics. Overpopulation has recognized as a global environmental problem since few decades, as it has caused a number of adverse effects on environment. We know that the population growth means that the human impact on the environment will be more and more. For example, burning of fossil fuels such as coal and petrol. The environment on earth is suffering from the growth of global population. In 2015, 80 per cent of the worlds population live in lessdeveloped nations.
Impact of development on environment by surabhi tanwar 2. Sheer human numbers in some instances have a direct impact on the environment. Polluted environment also affects adversely the health of people. The relative impact of population momentum on future population growth varies by country, especially in comparison to the impact of current and future levels of fertility. While developed countries continue to pollute the environment and deplete its resources, developing. Humans have sought to understand the relationship between population dynamics and the environment since the earliest times 1, 2, but it was thomas malthus essay on the principle of population in 1798 that is credited with launching the study of population and resources as a scientific topic of inquiry. The variety and complexity of populationenvironment associations varies with spatial aggregation. As human population increase, there is also increase in the demand for food and other energy sources. This has the effect of controlling the prey population and ensuring its evolution in favor of genetic characteristics that render it less vulnerable to predation and the predator may coevolve, in response. People in developed countries require substantially more resources to maintain their lifestyles compared with people in developing countries. The ways in which populations are spread across earth has an effect on the environment. What are environmental problems due to population growth.
The effect of population growth on environmental quality. There is an inverse relationship existing between population growth and environment as overpopulation will lead to adverse effect on the environment. Humans have sought to understand the relationship between population dynamics and the environment since the earliest times 1, 2, but it was thomas malthus essay on the principle of population in 1798 that is credited with launching the study. Population, natural resources, and environment 115 unplanned urbanization primarily as a result of ruraltourban migration, asia is the fastest urbanizing region in the world. The effects of population growth and aging on climate. Reflections on sustainability, population growth, and the environment page 3 and environmentally sustainable p. An increase in population tends increase in the demand for land, for.
The interaction of population growth and environmental. The rapid increase of human population is putting an incredible strain on our environment. All life on earth obtains its food and other necessities from this environment. It is not the census figures alone that need to be stressed, but an appreciation of the impact on natural resources of the rapid escalation in the. Population growth is the increase in the number of people living in a particular area. Effect of development on environment and population ecology. One of the factors responsible for environment degradation is population growth or population density. One has to ask if it is possible to have an increase in economic activity growth. Humans are destroying forests because the human population is increasing dramatically and we are needing more resources. The use of resources and the impact of environmental issues are not equal around the globe. Population growth and its impacts on nature and natural resources.
This summary presents some basic facts about those impacts. Various diseases hiv aids, tb, malaria, water borne diseases. World population growth and environmental degradation. All species impact environment understanding how humans interact with the biosphere is crucial to protecting the natural resources. Overpopulation is the root cause of most environmental problems. The editorinchief is dr elizabeth fussell, associate professor of population studies and. Ethical and conceptual issues there are two types of debates over population growth and the environment. Population and the environment the impact of population growth on economic development is a complex issue. The natural and physical environment is something that geologists, meteorologists, oceanographers, and other scientists should be studying, not sociologists.
Pimentel introduction a h e a l t h y and prudently managed environment is a major benefit to humans and other species. One should be struck by the fact that here is a call for economic growth that is sustainable. Ii population, natural resources and environment alan jowett, haydea izazola encyclopedia of life support systems eolss and demographic changes in recorded history. Most populations are not stable, fluctuating in size over time the letter n often denotes the number of individuals in a population. Population definition and examples biology dictionary. The effects of overpopulation on environment essay example. Jun 26, 2015 effect of development on environment and population ecology 1. More often, however, the environmental implications of population size are.
There are many mechanisms the effect of population growth on the environment 381 of environmental degradation that do not involve population size or growth see, e. Figure 2 shows that in countries with high fertility levels in recent years, such as niger, the share of projected growth between 2015 and 2050 that will be due to the age. Developing countries tend to have higher birth rates due to poverty and lower access to family planning and education, while developed countries have lower birth rates. Uncontrollable population growth issue impacts on environment. Impact of a growing population on natural resources. The impact of population momentum on future population growth. Effect of development on environment and population ecology 1. Mar 15, 2020 population growth and its impacts complete detail. This paper summarizes research on the effect of population growth on environmental quality. Effects of population on the environment practice test.
The impacts of continued population growth are already felt by a majority of nations. The depletion of resources and biodiversity, the production of waste, and the destroying of natural habitat are serious problems. This has the effect of controlling the prey population and ensuring its evolution in favor of genetic characteristics that render it less vulnerable to predation and. T wo hundred years ago in his first essay, thomas malthus argued that unrestrained population growth would eventually. Figure 2vi north east population by age group 2004 and 2029 12 figure 2vii variant population projections for the uk to 2083 based on mid2008 estimates 17 figure 2viii actual and projected population of the united kingdom and constituent countries, 2008based national population projections, 19512051 18.
Human population impacts environment science in many ways. Ethical and conceptual issues there are two types of debates over population growth. The effects of overpopulation on environment reliable papers. The effects of overpopulation on the environment essay bartleby. Finally, i consider the fu ture of research on the environment in the field of demography. The challenge for environmental management david pimentel, x. Agricultural and industrial development along with urbanisation and spread of infrastructure combined with population growth has led to environmental degradation. Nature and natural resources are destroyed as human populations grow. Compared to prior research, the special contributions of the baltimore study are examination of 1 population size, 2 positive consequences of high density and large size, and 3 effects in three distinct residential areas. Test and improve your knowledge of effects of population on the environment with fun multiple choice exams you can take online with.