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.

scholarly journals Numbers for an Alternative Anthropocene: Population Counting and Humanity’s Place Among Other Species in Daniel Keys Moran’s Tales of the Continuing Time // Cifras para un antropoceno alternativo: Recuento de población y el lugar de la humanidad entre otras especies en Tales of the Continuing Time de Daniel Keys Moran

2018 ◽  
Vol 9 (1) ◽  
pp. 66-84
Author(s):  
Keri R Stevenson
Keyword(s):  
Population Growth ◽  
Science Fiction ◽  
Human Population ◽  
Animal Studies ◽  
Genetically Engineered ◽  
Moran’S I ◽  
Moran's I ◽  
World Government ◽  
Human Population Growth ◽  
The Earth

     This article approaches the science fiction series Tales of the Continuing Time from an animal studies perspective: examining Daniel Keys Moran’s future earth which uses the means of respecting other intelligent species (artificial intelligences, genetically engineered beings, and aliens) rather than enforced bans on fertility to stop human population growth. Moran’s world government, the Unification, does not enforce such bans effectively, despite taking over the Earth for this purpose. Moran’s novels offer a picture of what happens when the rhetoric around population growth, and possibly justified fear, obstructs human will and human self-restraint. Resumen      Este artículo aborda la saga de ciencia ficción Tales of the Continuing Time desde la perspectiva de los estudios de los animales. Así, se investiga la Tierra futurista de las novelas de Daniel Keys Moran, en las cuales se representa un respeto hacia otras especies inteligentes (inteligencias artificiales, seres humanos genéticamente modificados, y extraterrestres) para parar el crecimiento poblacional, en vez de narrativizar políticas de prohibición la fertilidad. El gobierno planetario de las novelas, la Unificación, no impone tales prohibiciones de manera eficaz, a pesar de tomar el control del planeta con este fin. Las novelas de Moran ofrecen una imagen de lo que ocurre cuando la retórica sobre el crecimiento poblacional y el terror posiblemente justificado obstruyen la voluntad y el autocontrol humanos.

Agroecosystem energy, ecological human imprint and economic sustainability: Analysis and impacts

2021 ◽  
pp. 147-177
Author(s):  
Safwat H. Shakir Hanna ◽  
Gian Paolo Cesaretti
Keyword(s):  
Population Growth ◽  
Natural Resources ◽  
Human Population ◽  
Current Trend ◽  
Life Cycles ◽  
Current Status ◽  
World Population ◽  
Human Beings ◽  
Human Population Growth ◽  
The Earth

Agroecosystem energy is an essential part of the natural resources available to humans for use and the continuation of Earth's life cycle. Without energy, life on this Earth will stop, and the drivers of all ecological life cycles will not be able to continue function. Energy is an essential factor that makes the working process of human survivability possible. According to World Population Clock, the current status of human population growth is in an alarming situation (i.e., 7.81 billion people and continues to increase) [World Population Clock 2020 Accessed September 20, 2020][ World Population Clock, 2020). Therefore, the ecological human imprint will impact all Earth's natural resources, in the forms of more consumptions and demands that will have impacts on the global social and economic issues globally. Sustainability will be accomplished if we live within the concept of Nature, controlling our human population growth to reduce the impacts on natural resources' demands. In this respect, sustainability will not be achieved by economic growth alone; instead, the biosphere natural resources must replenish it and allow the natural resources to regenerate itself to support the growing human population. The present paper will assess the agroecosystem energy continuing ongoing demands and availability concerning human population growth by modeling different scenarios. According to our model, the human population growth will reach 10 billion people or more by the year 2050 at the current trend, and we may be faced with shortening the availability of energy. It is important to stress that the energy should be replenished through non-tradition energy supply, and we have to concentrate on renewable energy, which we can develop to the extent of harvesting this energy in efficient ways. An example of the needs of energy in the agroecosystem is to calculate how much enough the Earth has to support the human beings. In this regard, if each human being is in need of 2000 calories/per day on average, this means that globally the Earth has to produce more than 5694 trillion calories per year. The question is whether the Earth can create these calories to support 7.81 billion people, and we need more calories when the human population grows to be more than 7.81 bil lion people. Therefore, engineering of the Earth agroecosystem should be significant, and we have to think about how we accomplish it. Additionally, we need to sustain our environment by conserving our water resources and keeping our global climate environmentally in the best condition to maintain international economic and social standards. Further, in this paper, we will discuss the impacts of changing different parameters that affect global agroecosystem energy.

scholarly journals Human population growth offsets climate-driven increase in woody vegetation in sub-Saharan Africa

2017 ◽  
Vol 1 (4) ◽  
Author(s):  
Martin Brandt ◽  
Kjeld Rasmussen ◽  
Josep Peñuelas ◽  
Feng Tian ◽  
Guy Schurgers ◽  
...  
Keyword(s):  
Population Growth ◽  
Human Population ◽  
Sub Saharan Africa ◽  
Woody Vegetation ◽  
Human Population Growth ◽  
Sub Saharan

scholarly journals A Review of Nanotechnology Application for Seawater Desalination Process. SOIJST Vol. 1 (1):155-179

2018 ◽  
Author(s):  
Evan Jordan
Keyword(s):  
Energy Efficiency ◽  
Population Growth ◽  
Reverse Osmosis ◽  
Human Population ◽  
High Rate ◽  
Seawater Desalination ◽  
Human Population Growth ◽  
Freshwater Resource ◽  
Efficiency And Effectiveness

As freshwater resource decreasing rapidly due to high rate of human population growth, many researchers have done studies to develop methods for producing freshwater supply. Seawater desalination is one of the method that has the credibility to be implemented. However, conventional seawater desalination processes suffer from a number of problems related to energy efficiency and cost. In spite of this, nanotechnology has been applied to the process. In this paper, we give an overview and explanations concerning the roles of nanotechnology in seawater desalination processes which consist of pretreatment, reverse osmosis (RO), and disinfection. In addition, the comparisons between conventional and nanotechnology-applied processes as related to its efficiency and effectiveness are also provided.

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