Overpopulation has recognized as a global environmental problem since few decades, as it has caused a number of adverse effects on environment. Human overpopulation or population overshoot is when there are too many people for the environment to sustain with food, drinkable water, breathable air, etc. The geometric rise in human population levels during the twentieth century is the fundamental cause of the loss of biodiversity. The impact of population growth can be seen by everyone who care for the world that we live in. Population of our earth was 1 billion, taking all the history of human beings to achieve this mark. Impact of population explosion on environment human. When birth rates decrease, the strain on younger workers can be immense.
The impact of human population growth on the worlds. Population explosion, project report on population explosion, natural resources effect population density include water, soil, fuel and minerals. In more scientific terms, there is overshoot when the ecological footprint of a human population in a geographical area exceeds that places carrying capacity, damaging the environment faster than it can be repaired by nature. The challenge for environmental management david pimentel, x. The unprecedented rate at which the human population has grown since the beginning of the industrial revolution has had immeasurable impacts on the ability of nonhuman species to survive. At its simplest, it describes how human impact on the environment i is a result of a multiplicative contribution of population p, affluence a and technology t.
Europe for example, has higher population densities than asia. Pimentel introduction a h e a l t h y and prudently managed environment is a major benefit to humans and other species. The ipat equation, first devised in the 1970s, is a way of determining environmental degradation based on a multiple of factors. Wildlife and habitat destruction negative population growth. Population growth and its impacts on nature and natural resources.
One of the factors responsible for environment degradation is population growth or population density. This is like adding the whole population of china to the worlds population. All books are in clear copy here, and all files are secure so dont worry about it. What are some positive effects of population growth. Human overpopulation or population overshoot is when there are too many people for the scientists suggest that the overall human impact on the environment, due to overpopulation, the united nations projects that the population of 51 countries or areas, the end of high fertility is near pdf. Human population and the environment book pdf free download link book now.
Holdren the interlocking crises in popula tion, resources, and environment have been the focus of countless papers, dozens of prestigious symposia, and a. The impact that this population explosion has had on the environment has been just as striking, as seen by changes in greenhouse gas emissions, rates of soil erosion, and the extinction of species. Nations with higher populations are better able to raise money on a national level, and this can lead to more international clout. The conversion of natural lands to croplands, pastures, urban areas, reservoirs, and other anthropogenic landscapes represents the most visible and pervasive form of human impact on the environment. What is more concern, the number of population rise will increase to such an extent in future that it will cause overall scarcity for resources. In order to diminish negative impacts on the worlds resources by increasing human population growth, many strategies for sustainability, improvements, and technological advances should be researched, studied, considered, and implemented. To what extent does human population growth impact global warming, and what can be done. Impact of population growth and natural hazards on biodiversity.
The impact of the population explosion on the environment is unquestionably high, but the size of the. More humans have been added to the worlds population in the past 40 years than in the previous three million keyfitz 1989. Overpopulation can further be viewed, in a long term perspective, as existing when a population cannot be maintained given the rapid depletion of nonrenewable resources or given the degradation of the capacity of the environment to give. Start the discussion today with the notion of sustainability. Impact of population growth and natural hazards on.
As only roughly 1% of the worlds water is fresh and accessible, this creates a major issue. Population growth is essential for creating a strong base of highincome workers. In the world population debate, the general concerns involve mainly three interconnected consequences of the population explosion. More the population, the more is the requirement of natural resources like water, minerals, petroleum etc. Human overpopulation problems are not limited to society to alone. What are environmental problems due to population growth. Population growth is the increase in the number of people living in a particular area. Human population growth and its effect environmental sciences essay. The current rate of population growth is now a significant burden to human wellbeing. Polluted environment also affects adversely the health of people. Population and the environment, a report from the national wildlife federation finds. Rising populations put increasing demands on natural resources such as. One of the largest environmental effects of human population growth is the problem of global warming. But after two centuries, the population of this planet reached to 6 billion, with half of this population being living in urban areas.
Sophia perdikaris in this research paper, the main focus is on the issue of overpopulation and its impact on the environment. Notably, the human population has grown nearly tenfold over the past three centuries and has increased by a factor of four in the last century. Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans, including global warming, environmental degradation such as ocean acidification, mass extinction and biodiversity loss, ecological crisis, and ecological collapse. Population and the environment the impact of population growth on economic development is a complex issue.
Species are becoming extinct and humanity is at threat that it set up for. Human overpopulation occurs when the number of humans in a specific geographical location exceeds the carrying capacity of the place occupied by that group. There are more than two sides to the debate on whether population numbers equate to overpopulation or not. The demographic transition is after all not a law of nature but the result of human actions and human institutions. Impact of population explosion on environment introduction approximately 6. List of books and articles about population growth.
Does the rate at which people are reproducing need to be controlled to save the environment. Nature and natural resources are destroyed as human populations grow. Revisiting the environmental and socioeconomic effects of. Agricultural and industrial development along with urbanisation and spread of infrastructure combined with population growth has led to environmental degradation. Apr 17, 2015 environmentalists have long recognized the impact of human population growth on the 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 explosion, population control, project report. Impact of population growth complacency concerning this component of mans predicament is unjustified and counterproductive.
In an agricultural or technological society, each human individual has a negative impact on his environment. The impact of that great rise of population on our environment is striking through population of our earth was 1 billion, taking all the history of human beings to achieve this mark. Today, roughly 40% of earths land surface is under agriculture, and 85% has some level of anthropogenic influence. Human population impacts environment science in many ways. Factors effecting environment population growth impact. New technologies may lead to better management and distribution of resources. The impact of population on environmental degradation in south asia. The human population explosion yale scientific magazine.
The growing size of the global population is not an issue that appeared within the past. Things to be learned population growth, variations among nations population explosion family welfare program environment and human health human rights value education women and child welfare role of information technology in environment case studies mr. Industrialization, burning fossils fuels, non renewal resources, pollution, increased co2 level. 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. Overpopulation and the impact on the environment by doris baus advisor. The growth in human population around the world affects all people through its impact on the economy and environment.
Human population and the environment 215 3 to 4 billion, in 14 years. Holdren the interlocking crises in popula tion, resources, and environment have been the focus of countless papers, dozens of. Human population and the environment book pdf free download link or read online here in pdf. Both an explosion in the human population and the increasing prevalence of technology have led to the start of what has been dubbed the anthropocene era, a term stemming from the greek roots anthropo human and cene new that examines the extent to which human activity has impacted ecosystems across the planet. In particular, population density plays the most important role in shaping the socioeconomic environment. Impact of population growth and population ethics on climate change mitigation policy. Impact of a growing population on natural resources.
All life on earth obtains its food and other necessities from this environment. Impact of population growth and population ethics on. As might be imagined population growth has positive and negative effects on development. Overpopulation creates greater demand on the worlds freshwater supplies. Evolution of the total fertility rate in some countries between 1950 and 2010, and projected evolution until 2050. Populations in developed countries trend toward using substantially. Since populations can grow exponentially, resource depletion can occur rapidly, leading to specific environmental concerns such as global warming, deforestation and decreasing biodiversity. The development of agriculture led to a population explosion that has. Some estimates state that human demand for fresh water will stand at approximately 70% of what is available on the planet by 2025.