However, interestingly there are also countries who are worried about the decline in their population. Those countries with heavy population explosion consider it as a threat to their economy and well-being. While those with a decline in population worry that there will not be enough workforce to support their economy.
Indeed our very success going forth and multiplying, paired with our ability to extend our life expectancy, has meant that we are perpetually pushing the limits of the resource base that supports us.
Today our population tops seven billion. While better health care and medicine along with advances in food production and access to freshwater and sanitation have allowed us to feed ourselves and stave off many health ills, some so-called Neo-Malthusians believe we may still be heading for some kind of population crash, perhaps triggered or exacerbated by environmental factors related to climate change.
Of course, the immigration that continues to fuel population numbers in developed countries is coming from somewhere.
Also fertility rates in Africa continue to be among the highest in the world, as many countries there are growing fast, too. Poverty and health problems due to poor sanitation, lack of access to food and water, the low social status of women and other ills continue to cripple these regions.
Globally, the United Nations estimates that the number of humans populating the planet in will range from as few as 6. Meanwhile, other researchers confirm the likelihood of world population levels flattening out and starting to decline by according to the lower UN estimate.
To wit, the Austria-based International Institute for Applied Systems Analysis IIASA recently unveiled research showing that if the world stabilizes at a fertility rate comparable to that of many European nations today roughly 1. It is difficult to say which way the global population pendulum will swing in centuries to come, given ever-changing cultural, economic and political attitudes and the development demographics they affect.
As such the jury is still out as to whether human overpopulation will become a footnote in history or the dominant ill that stands in the way of all other efforts to achieve sustainability and a kinder, gentler world.Pollution, soil degradation, deforestation and loss of biodiversity are further effects of overpopulation on the environment.
Freshwater availability is a problem in most developing nations, and the per capita availability of freshwater has decreased by one-third over the past 50 years.
Overpopulation has worsened the local and global food security by synergistic impacts of climate change. Emission from agriculture sources elevated from billion tonnes to over billion.
How Poverty Impacts Overpopulation It is common knowledge that extremely impoverished areas always seem to be overpopulated, thus adding to the financial and . Overpopulation is associated with negative environmental and economic outcomes ranging from the impacts of over-farming, deforestation, and water pollution to eutrophication and global warming.
Human population growth and overconsumption are at the root of our most pressing environmental issues, including the species extinction crisis, . Human overpopulation has been dominating planetary physical, chemical, and biological conditions and limits, with an annual absorption of 42% of the Earth’s terrestrial net primary productivity, 30% of its marine net primary productivity, 50% of its fresh water, 40% of its land devoted to human food production, up from 7% in , 50% of its land mass being transformed for human use and atmospheric nitrogen .