Global Warming, Human Population Pressure, and Viability of the World's Smallest Butterfly

2005 ◽  
Vol 19 (4) ◽  
pp. 1113-1124 ◽  
Author(s):  
MARTIN HOYLE ◽  
MIKE JAMES
Keyword(s):  
Global Warming ◽  
Human Population ◽  
Population Pressure

scholarly journals Population Backfire: Hindsight to Malthusian Catastrophe

2020 ◽  
Vol 8 (1) ◽  
pp. 121-126
Author(s):  
R Ramya ◽  
C C Babu ◽  
P Akshay
Keyword(s):  
Food Supply ◽  
Human Population ◽  
Future Generation ◽  
Population Pressure ◽  
Basic Tenet ◽  
Sufficient Food Supply ◽  
Per Capita ◽  
Sufficient Food ◽  
Global Population ◽  
Malthusian Trap

The basic tenet of Economics lies in the scarcity principle and unlimited nature of human wants, but allocating a definite amount of resources to satisfy the growing per capita needs in an economy is a difficult task. Things become more complicated when the population pressure generates backfire. The global population has increased to 7.8 billion, and it is essential to ensure sufficient food supply for the growing human population as well as for other species without destroying ecological balance is a serious matter to consider. An evaluation of Malthusian population theories has great importance in this context. This paper intends to analyze the Malthusian theory of population and what happens if population backfire happens and also looks into the intensity of positive checks on population along with the Malthusian trap and its effect on the present as well as the future generation.

Lessons from Covid 19 experience for African governments: towards environmental sustainability

2020 ◽  
Vol 3 (3) ◽  
pp. 126-132
Author(s):  
Peter Bisong Bisong
Keyword(s):  
Global Warming ◽  
Environmental Sustainability ◽  
Human Population ◽  
Environmental Crisis ◽  
Human Beings ◽  
Life Changes ◽  
Philosophical Methods ◽  
Long Time

Covid 19 is an unfortunate situation that nevertheless could be said to have produced environmentally beneficial results. It has forced Africans and humanity in general to change attitudes and lifestyles that were hitherto inimical to the environment to ones that could restore the environment. For the sake of survival, consumerism which is one of the greatest hallmarks of Africans and a source of depletion of earth resources has given way to frugality; transportation activities that is one of the greatest sources of global warming have significantly reduced and most importantly human population which has terrifically posed as a threat to the survival of the environment is being forcefully checked. These and many other life changes in human beings, though accidental, are healing the environment, and the paper argues that if they are sustained, the environment will totally be restored to sound health. Most of these changes will naturally be sustained even after the Covid 19 pandemic, for as Aristotle acknowledged, actions perpetrated for a long time become habituated. However, I believe that if conscious efforts are also made to sustain these changed attitudes, then the environmental crisis currently enveloping the globe will be halted. The paper using philosophical methods of criticality and argumentation concludes that Covid 19 though tragic for humans, nevertheless has lessons that could be useful for the present drive to sustain the environment and by that prevent future pandemic that could be environmentally related. The paper argues vehemently that African governments must steer their developmental agenda towards environmental sustenance in line with Covid 19 seeming directives to humanity.

scholarly journals Modeling the effect of deforestation caused by human population pressure on wildlife species

2018 ◽  
Vol 23 (3) ◽  
pp. 303-320 ◽  
Author(s):  
Kusum Lata ◽  
◽  
Arvind Kumar Misra ◽  
Jang Bahadur Shukla ◽  
◽  
...  
Keyword(s):  
Human Population ◽  
Population Pressure ◽  
Wildlife Species

Long-term environmental trends and the future of tropical wetlands

2002 ◽  
Vol 29 (4) ◽  
pp. 414-435 ◽  
Author(s):  
Wolfgang J. Junk
Keyword(s):  
South America ◽  
Sustainable Management ◽  
Human Population ◽  
Human Impacts ◽  
Population Pressure ◽  
Tropical Wetlands ◽  
Tropical Countries ◽  
Stable Conditions ◽  
Planning Concepts

Tropical wetlands assume important functions in the landscape and contribute considerably to the welfare of large parts of the human population, but they are seriously threatened because they are considered free resources of land and water. This review summarizes long-term environmental trends for tropical wetlands and predicts their future to the time horizon 2025. Many tropical countries do not have the economic strength, scientific and technological capacity, and/or administrative infrastructure to adequately react to the challenges of increasing population pressure and globalization of the economy with respect to the sustainable use of the resources. Furthermore, political instability and armed conflicts affect large areas in several tropical countries, hindering wetland research and management. Detailed wetland inventories are missing in most countries, as are plans for a sustainable management of wetlands in the context of a long-term integrated watershed management. Despite large regional variability, a continental ranking shows, in decreasing order of wetland integrity, South America, Africa, Australia and Asia, while efforts to mitigate human impacts on wetlands are largest and most advanced in Australia. Analysis of demographic, political, economic and ecological trends indicates fairly stable conditions for wetlands in tropical Australia, slight deterioration of the large wetland areas in tropical South America excepting the Magdalena and Cauca River flood plains where human population is larger, rapidly increasing pressure and destruction on many African and Central American wetlands and serious threats for the remaining wetlands in tropical Asia, by the year of 2025. Policy deficiencies, deficient planning concepts, limited information and awareness and institutional weakness are the main administrative reasons for wetland degradation and must be overcome to improve wetland management and protection in future. Intensification of international cooperation and assistance is considered of fundamental importance for most tropical countries to solve problems related to wetland research, protection and sustainable management.

scholarly journals Dynamics of Land Use and Land Cover in the Kafta-Sheraro National Park, NW Ethiopia: Patterns, Causes and Management Implications

1970 ◽  
Vol 11 (2) ◽  
pp. 239-257
Author(s):  
Arafaine Zenebe ◽  
Asefa Addisu
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
National Park ◽  
Human Population ◽  
Agricultural Land ◽  
Human Impacts ◽  
Population Expansion ◽  
Population Pressure ◽  
Land Cover Types

Kafta-Sheraro National Park (KSNP) is one of the most important protected areas in Ethiopia and provides a number of important ecological and hydrological benefits to the local people. However, the park is under immense pressure as a result of a rapidly increasing human population that resulted from a voluntary resettlement program launched by the government in 2003. Using satellite imageries taken in the years 2003, 2009 and 2015, this study examined patterns of changes in land use/cover throughout the park over a 12 year period (2003 to 2015), during which human population pressure is known to have increased over time and changes in government policies were taken place. The results showed that, over the period of 12 years, wood land experienced the most changeover the study period, with a loss of cover of 862.3 km2 (i.e. from 77.8% coverage of the total park area in 2003 to 38.0% in 2015) at annual rate of 79.3 km2). Conversely, the other land cover types showed increasing pattern, particularly, bush land and agricultural land were increasing at a rate of 44.96 and 18.90 km2 per year, respectively. Overall, the rate of land cover change was higher during the first period (2003 to 2009) compared with the second period (2009 to 2015) for all land use and land cover types, except grass land, suggesting that human impacts were higher following the resettlement program in 2003 and then slowed down following establishment of the park in 2007. The major causes of land cover change in the area were settlement and population expansion, cultivation, fire, mining and grazing. We suggest that better effective park protection systems should be in place to mitigate and restore habitats.

Fishing in the gene pool – how useful was the catch?

2013 ◽  
Vol 11 (3) ◽  
pp. 283-287
Author(s):  
Robert Koebner ◽  
Rodomiro Ortiz
Keyword(s):  
Climate Change ◽  
Plant Breeding ◽  
Genetic Resources ◽  
Gene Pool ◽  
Human Population ◽  
Plant Genetic Resources ◽  
Population Pressure ◽  
Central Theme ◽  
Section Meeting ◽  
Breeding Programmes

A commentary on the highlights of the 2013 EUCARPIA (the European Associationc for Research on Plant Breeding) Plant Genetic Resources Section meeting at the Swedish University of Agricultural Sciences in Alnarp is presented here. The central theme of the meeting was the use of plant genetic resources in pre-breeding programmes, particularly in the context of incipient climate change and human population pressure.

MODELING THE SURVIVAL OF HUMAN POPULATION IN A STRESSED ENVIRONMENT: EFFECT OF GLOBAL WARMING DUE TO TRAFFIC EMISSIONS

2021 ◽  
pp. 2150001
Author(s):  
SHYAM SUNDAR ◽  
RAM NARESH TRIPATHI ◽  
NIRANJAN SWAROOP
Keyword(s):  
Global Warming ◽  
Greenhouse Gases ◽  
Human Population ◽  
Equilibrium Points ◽  
Threshold Value ◽  
Threshold Level ◽  
Traffic Emissions ◽  
Particulate Matters ◽  
Earth Surface ◽  
Average Temperature

The survival of human population is adversely affected by the global warming due to increasing temperature of earth surface caused by emissions of various gases (such as carbon dioxide, methane, etc.) and particulate matters from vehicles in the traffic. These gases, called greenhouse gases, present in the atmosphere above a certain threshold result to elevate the average temperature of earth surface affecting the human population. To comprehend this problem, in this paper, a nonlinear mathematical model is proposed to study the detrimental effects on human population of the increased earth surface temperature caused by traffic emissions. In the model formulation, five nonlinearly interacting variables namely; the cumulative densities of human population and vehicles in traffic, cumulative concentration of greenhouse gases and particulate matters due to traffic emissions and average global warming temperature of earth surface have been used. Using stability theory, certain inferences have been drawn regarding the local and nonlinear stability behaviour of the equilibrium points. It is shown that as the cumulative concentration of greenhouse gases emitted from vehicles in the traffic reaches beyond its threshold level, the average temperature of earth surface rises above its threshold value leading to global warming with diminishing effects on the growth of human population density. The growth of human population is further declined with increase in the cumulative concentration of particulate matters emitted from vehicles in traffic. Numerical simulations have also been performed to validate the analytical findings.

scholarly journals In View of Today’s Realities: What should any Work with the Plant World Actually Gain us?

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Sener Akinci
Keyword(s):  
Global Warming ◽  
Endemic Species ◽  
Human Population ◽  
Health Problems ◽  
Toxic Metabolites ◽  
Plant Biochemistry ◽  
The World ◽  
Climate Crisis ◽  
The Relationship ◽  
Important Evidence

Studies on plants are important evidence not only for their diversity and richness in the world, but also for revealing the relationship between the environment and the organisms. How important are the concepts of climate crisis and global warming? What is the number of people in the world, other than scientists, who are aware of the seriousness of the problem? Do we have any information about the number of people who have knowledge about what can be done? Do we want to experience the carbon richness of millions of years ago (Carboniferous) again? Let's not forget that this reality, which seems to be an advantageous situation at first glance, has actually been moved to a platform where today's leaders discuss the effects of climate balance. We need more and more plants all over the planet. With the increase in the human population, it is time to change our prejudices about “uncertain or suspicious” plants to be used. Could some toxic metabolites be usable or even edible by appropriate treatments? Can countries that are lucky in terms of endemic species make better use of these reserves? Plant biochemistry studies should be encouraged in this respect.In addition, there is evidence that the consumption of a large number of products that we use as food causes health problems that we do not know yet, but which can increase greatly with daily use and even be fatal when contaminated by pathogenic organisms.

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