Will Limited Land, Water, and Energy Control Human Population Numbers in the Future?

Human Ecology ◽  
2010 ◽  
Vol 38 (5) ◽  
pp. 599-611 ◽  
Author(s):  
David Pimentel ◽  
Michele Whitecraft ◽  
Zachary R. Scott ◽  
Leixin Zhao ◽  
Patricia Satkiewicz ◽  
...  
Keyword(s):  
Human Population ◽  
Energy Control ◽  
The Future ◽  
Land Water ◽  
Population Numbers

scholarly journals Ecology of the Anthropocene signals hope for consciously managing the planetary ecosystem

2021 ◽  
Vol 118 (28) ◽  
pp. e2024150118
Author(s):  
Clarence Lehman ◽  
Shelby Loberg ◽  
Michael Wilson ◽  
Eville Gorham
Keyword(s):  
Population Growth ◽  
Cultural Evolution ◽  
Human Population ◽  
Human Populations ◽  
Present Moment ◽  
Minimal Set ◽  
The Past ◽  
Food Species ◽  
Large Predators ◽  
Population Numbers

Human populations have grown to such an extent that our species has become a dominant force on the planet, prompting geologists to begin applying the term Anthropocene to recognize the present moment. Many approaches seek to explain the past and future of human population growth, in the form of narratives and models. Some of the most influential models have parameters that cannot be precisely known but are estimated by expert opinion. Here we apply a unified model of ecology to provide a macroscale summary of the net effects of many microscale processes, using a minimal set of parameters that can be known. Our models match estimates of historic and prehistoric global human population numbers and provide predictions that correspond to some of the more complicated current models. In addition to fitting the data well they reveal that, amidst enormous complexity in our human and prehuman past, three key ecological discontinuities have occurred in turn: 1) becoming dominant competitors of large predators rather than their prey, 2) becoming mutualists with food species rather than acting as predators upon them, and 3) changing from a regime of uncontrolled population growth to one of controlled fertility instead. All three processes have been interlinked with cultural evolution and all three ushered in developments of the Anthropocene. Understanding the trajectories that have delivered us to this stage can help guide prudent paths into the future.

scholarly journals Climate Change and Bangladesh: Geographical and Socio-economic Impacts

2014 ◽  
Vol 7 ◽  
pp. 113-132 ◽  
Author(s):  
Farjana Jahan ◽  
Kazi SM Khasrul Alam Quddusi
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Greenhouse Effect ◽  
Economic Impacts ◽  
Climatic Changes ◽  
Economic Conditions ◽  
Local Initiative ◽  
The Future ◽  
The Waves ◽  
Land Water

Climate change, the effects of greenhouse effect and global warming, is out to alter the global map with its devouring prospects of sending a number of countries under the waves. Unfortunately yet unavoidably, Bangladesh stands at the forefront of climate forays. Its land, water and weather are being severely affected by undesirable climatic changes. Alarmingly, the dangers are to be intensified unless the trend is reversed. However, local initiative will hardly be enough to offset the grave concerns of unintended climatic changes in Bangladesh. The changes will also impact the socio-economic conditions of the country, putting the future of the nation on the line. Some ominous signs are already there for the concerned to respond with required amount of fervour. DOI: http://dx.doi.org/10.3126/dsaj.v7i0.10439 Dhaulagiri Journal of Sociology and Anthropology Vol. 7, 2013; 113-132

scholarly journals Hemp is the Future of Plastics

2018 ◽  
Vol 51 ◽  
pp. 03002
Author(s):  
Ali Asghar Modi ◽  
Rehmatullah Shahid ◽  
Muhammad Usman Saeed ◽  
Tanzila Younas
Keyword(s):  
Carbon Dioxide ◽  
Infinite Number ◽  
Biodegradable Plastic ◽  
The Future ◽  
Greenhouse Impact ◽  
By Products ◽  
Land Water

Plastic is the world's most adaptable material. From bikes to food wraps and from jets to pencils, you can make anything and everything from plastics. With the infinite number of uses, plastic also have some devastating impacts on our planet. Most plastics produced today are made using petroleum-based compounds that release harmful gases into the atmosphere. Waste solutions are inefficient, and harmful by-products toxic our land, water and wildlife. Yet, consider the possibility that there was a way to deal with deliver the greater part of what we utilize causes a negative greenhouse impact, is sustainable and biodegradable and has just about an indistinguishable cost to our present techniques. Meet Hemp plastic, an only plastic that's 100% biodegradable in nature if produce by using only Hemp plant. Hemp plant consumes 4 times more carbon dioxide then other plants from atmosphere. The fiber we can produce from hemp is stronger than the conventional fiber we are using these days. This paper is intended to show numerous benefits of using hemp for the manufacturing of biodegradable plastic (HEMP PLASTIC) rather than conventional plastics.

The Future, Human Population, and Management

2009 ◽  
pp. 278-300
Author(s):  
Charles R. C. Sheppard ◽  
Simon K. Davy ◽  
Graham M. Pilling
Keyword(s):  
Human Population ◽  
The Future

scholarly journals How Many People can the Earth Support?

1998 ◽  
Vol 4 (2) ◽  
pp. 170
Author(s):  
Sondi Bootle
Keyword(s):  
Population Growth ◽  
Carrying Capacity ◽  
Human Population ◽  
Modern Technology ◽  
Human Population Growth ◽  
The Past ◽  
The Earth ◽  
The Future ◽  
Heated Debate ◽  
Human Carrying Capacity

A much-heated debate has evolved over the past few decades regarding the future of human population growth and the number of humans that the planet Earth is able to sustain. Some claim that Earth has already reached its human carrying capacity, where others argue that the carrying capacity of the planet is limitless given modern technology. What is clear is that the carrying capacity of the Earth and the future of human population growth is a subject of much uncertainty.

People and Population

1965 ◽  
Vol 17 (3) ◽  
pp. 431-439 ◽  
Author(s):  
S.N. Afriat
Keyword(s):  
Human Population ◽  
Human Existence ◽  
The Earth ◽  
The World ◽  
The Future

The human population is the base of human existence. This, when considered, seems an inescapable proposition. But in the minds of most men it must have an absurd remoteness. The process of population has seemed like primordial creation itself, hardly a thing to be touched by mere scruple. Beyond the scope of any deliberation, the peopling of the earth has, for mankind as a whole, remained unquestioned as the earth, an axiom behind which there was no going and from which all proceeded. But according to a relentless gathering of awareness, as witnessed in an abundance of recent writings, it appears that history has marched to a new point. The condition of the world is being modified by a constellation of emergencies, and any observation and reflection on them, any rough glance at the outlines of trends in the life of the world, points to the swelling flood of population as the central reality in every perspective on the future.

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