Human Population Growth Essay

588 words - 3 pages


Human Population Growth


• What is the current estimate of the worldwide human population at this moment?
• Describe how this number is changing moment-to-moment, day-to-day, and from one year to the next.
• Describe how the human population growth issue has and will impact the ecosystem.
• Cite all references in APA format

Human Population Growth

There are several different estimates of the current world population, which vary slightly based on some assumptions about population estimates in different countries. Most census data for various countries is at least two years old (and may be older). Population models have to account for growth since that data was collected. They also have to adjust for some errors in that data (miscounts, birth ...view middle of the document...

Depending on the source of the estimate, there is a net gain of up to 10,000 people each hour, or about 3 per second.

Sometime in 1999, the world population passed 6 billion people. Exactly when that happened can’t be known, as we don’t have a count of every single person on earth – and who has just died and just been born. The Census Bureau estimates that the 6 billion mark was reached on April 21, 1999, at about 1:40 PM GMT. They warn, however, that the estimate will surely change as they get additional data from census counts, birth and death rates, and related information.

In a year from now, given an estimated net growth rate of 1.3, about 81 million people more people will be alive than now. That means the global population will be in the neighborhood of 6,841 million people (or about 6.8 billion people.)

The impact on the ecosystem of this many people can be dramatic. Humans consume large amounts of food – and alter landscapes to produce that food. Greenhouse gas emissions from farming activities, including the burning of fossil fuels and methane production from animal wastes, have a major impact on climate change. Plant and animal species are displaced by food production (farming, fishing, hunting), and many species are driven to extinction. The question of how many people can the world ecosystem support is very relevant. The world carrying capacity is finite, and unless human population growth levels off (and possibly becomes negative), the planet will not be able to sustain the large numbers of humans – let alone other animal and plant species. Eventually a population crash will come, if human population growth remains unchecked, and food production systems are unable to increase or maintain global food supplies.


(2009) Population Clock. US Census Bureau. Retrieved from

(2008) Population Clock. World Population. Retrieved from

Other Essays Like Human Population Growth

World Population Essay

775 words - 4 pages World Population The human population growth of the last century has been truly phenomenal. The world population passed 6 billion just before the end if the 20th century. Each year, about 90 million new people join the human race. This is roughly equivalent to adding three Canada’s or another Mexico to the world annually, a rate of growth that will swell human numbers from today’s 5.6 billion to about 8.5 billion by 2025. These

Population of India Essay

1726 words - 7 pages human resources quickly or we need to decrease our population growth rate ASAP. We as Indian citizen need to understand our responsibilities. India is free democratic country this does not mean that citizens do not have some responsibility. The population increase has lead to air and water pollution, unemployment, poverty, lack of educational resources, and even malnourished women and children. The technological development of India has lead not

Are Humans Special?

1216 words - 5 pages for free labor to attain their food. This simple change years ago started the exponential growth of the human population and the degradation of the earth. After some time there was the industrial revolution which saw a huge increase in, not only human infrastructure and transportation but also in human healthcare, sanitation and food growth. Since the industrial revolution introduced engine run tractors and farm equipment food production increased

Easter Island

350 words - 2 pages history of overpopulation, which Easter Island as an example of increasing population result a shortage of food, and exhaustion of natural recourses. As the forests are depleted, the quality of life falls, and then order is lost. Diamond uses the Easter Island as an epitome of Earth, which a rising population confronts shrinking resources. He believes that we can learn from Easter islanders' experience, and human can choose not to let the fate

Research Paper In Mapeh

2109 words - 9 pages Table of Contents I. Introduction 1 II. Objectives 1 III. Summary Philippines Demographics 1 Factors that Affect Population Growth 2 Advantages and Disadvantages of Large/Small Population 3 Population Control 5 How can we curb population growth? 6 IV. Conclusion 6 V. Generalization 7 VI. References 7 VII. Glossary 8 *words in red font color contain

Population Explosion: a Threat and a Challenge to All Filipinos

1022 words - 5 pages sector of the country’s economy. It paved the way to the best investment the country could offer: its human resource. It provided opportunities for other countries to invest in the Philippines, resulting to an economic growth increase by 7.2 percent in 2013. The government proposed various solutions to the problems provoked by the increasing population. The bill, “The Responsible Parenthood, Reproductive Health and Population Development Act

Geography Uganda Case Study as

858 words - 4 pages increase problems of unemployment, underemployment, rural-urban migration and crime. v) Urbanisation and Housing / Related Services. • Housing is a basic human need and has implications for health and productivity of a population. Rapid increase in population has not been matched by the growth and development in basic physical infrastructure and the provision of adequate housing and social amenities is not keeping pace with demand

Migitation Plan

1850 words - 8 pages off balance and then the population collapses. Neo-Malthusians in the 1970s re-examined Malthus’ theory and stated that population numbers will increase until it encounters with critical resources limits and population will collapse. The problem with both of these theories is that the problem is more much complex and these theories do not take into account the social and historic context of population growth (Barrow, 1999). Human Population

Proper Manpower Planning

1230 words - 5 pages people. Development is a multifarious phenomenon and population policy .one of its variable. Proper manpower-planning would definitely make the available human capital more productive and would help to reduce its pressure on future growth. Properly linked with the strategy of industrialization and modernization, population policy would open this vast potential growth resource available to the third world countries extending the reach out of development benefits and making its face more human.

China and India Demographic Paths

2510 words - 11 pages  countries’ relative economic  prospects. china’s population is larger than  India’s, but India’s population is expected  to surpass china’s by 2025. china’s population is older than India’s and beginning to  age rapidly, which may constrain economic  growth, whereas an increasing percentage of  India’s population will consist of working-age  people through 2030, giving India an important demographic advantage. how much these  demographic changes

Report on Population Growth in the Caribbean

735 words - 3 pages CARICOM aims to analyse the population growth rates of individual countries and the entire region to assist in making informed decisions. The Council for Human and Social Development (COHSOD) has assigned a team to analyse the birth and death rates for the past 11 years in six member states and write a report on the population growth rate in these states and the region as a whole. From the data analysed the following observations and conclusions

Related Papers

Co Existing Essay

542 words - 3 pages population may also be affected by emigration from the population and immigration into it, but these factors are only considered in human populations. Most populations exhibit a sigmoid (logistic) growth curve, which implies a relatively slow growth, a rapid increase (exponential growth), and then a leveling off when the carrying capacity of the species’ environment is reached. A pattern of exponential growth with a sudden die off of the

Human Population Essay

894 words - 4 pages Human Population Answer each of the following questions in at least 100 words. 1. Describe the two types of population growth (i.e., describe what the graphs that represent the two types of growth look like and explain why they look like they do). Which type of growth describes the human population growth pattern? The two types of population growth are Exponential growth and Logistic growth. Exponential growth is the expansion of

Sustainability Impacts And Consequences Essay

2846 words - 12 pages Lecture Outlines Chapter 8 Environment: The Science behind the Stories 4th Edition Withgott/Brennan © 2011 Pearson Education, Inc. This lecture will help you understand: • Human population growth • Different viewpoints on this growth • Population, affluence, and technology’s effects • Demography • Demographic transition • Factors affecting population growth • The HIV/AIDS epidemic • Population and sustainable development © 2011

Environmental Science Worksheet Essay

782 words - 4 pages University of Phoenix Material Environmental Science Worksheet Answer the following questions in at least 100 words. The answers are found in Ch. 1–4 of the text. 1. Provide a brief summary of the history of the environmental movement? 2. Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population