Factors Effecting Environment- Population Growth | Impact of Population Growth |
Environmental Science: High School Learning: Impact of Population Growth:
Over consumption Underlie:
Impact=Technology+ Affulence +Population
Impact on Population Growth:
Burning fossils fuels,
Non renewal resources,
Increased CO2 level,
Acidification of Lakes,
Herbicides and Pesticides,
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How population growth impacts the planet
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Global population growth | Environment | Biology | FuseSchool
Global population growth | Environment | Biology | FuseSchool
From about 2 million years ago until 13,000 years ago there were several human species inhabiting the earth. In fact, 100,000 years ago there were at least 6 different human species! Today there’s just us: Homo sapiens.
In this video we’re going to look at some of the key moments in our population growth, and what the future looks like.
Our species, Homo sapiens, first evolved about 200,000 years ago in East Africa. And slowly started out-competing our human cousins. And about 13,000 years ago our final cousins went extinct. During the past 200,000 years we’ve grown from 1 person to the 7.5 billion today. Homo sapiens’ population started to boom about 70,000 years ago, driving the other human species to extinction. Our ancestors conquered all corners of the earth and started inventing impressive objects. The most widely accepted explanation for our ancestors rapid success is a huge improvement in our language abilities, and therefore communication and ability to share information.
12,000 years ago, at the dawn of agriculture, there were about 5 million people alive. Our ancestors started farming some plant and animal species, to provide them with a reliable supply of energy. This changed how we lived. People settled permanently around the fields, and population began to grow much more quickly than ever before. We took 2 million years to reach 5 million people, and then 10,000 years to reach 1 billion people. And that’s nothing compared to what was to come!
200 years ago, the global population was about 1 billion people. Now we’re at a huge 7.5 billion today. And still, every year, there are 83 million more people living on this planet. That’s the population of all of Germany!
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Human Population and Resource Consumption
Thanks to technology, better living conditions, stable food supplies, and advancements in medicine, human population has increased dramatically in the last 200 years. Our greatest threat to ecosystems is our population. Each human consumes many resources that are taken from ecosystems. Some of the resources are renewable and can be replenished by nature. Replenishment takes time. Some of these resources are nonrenewable and in finite quantities. Once they are consumed, they are gone forever. The more people there are, the more resources we consume. As population growth and our need for resources continues to increase, we need to make sustainable decisions about consumption and environmental impact.
Human Population Growth - Crash Course Ecology #3
If being alive on Earth were a contest, humans would win it hands down. We're like the Michael Phelps of being alive, but with 250,000 times more gold medals. Today Hank is here to tell us the specifics of why and how human population growth has happened over the past hundred and fifty years or so, and how those specifics relate to ecology.
Table of Contents
1) R vs. K Selection Theory 01:41:1
2) Causes of Exponential Human Growth 03:24
3) Human Carrying Capacity 03:30:2
4) Ecological Footprints 06:40:1
5) Causes for Decline in Human Growth Rate 08:10:1 Crash Course is on Patreon! You can support us directly by signing up at
Overpopulation – The Human Explosion Explained
In a very short amount of time the human population exploded and is still growing very fast. Will this lead to the end of our civilization?
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Overpopulation – The Human Explosion Explained
How do ecologists study populations?
What factors affect population growth?
What happens during exponential growth?
What is logistic growth?
Population Growth and Its Effect On The Environment
Factors that affect populations
Population Limiting Factors | Biology
Learn all about population-limiting factors in just a few minutes! Jessica Pamment, professional lecturer at DePaul University, explains a habitat's carrying capacity, abiotic factors, and biotic factors.
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Find answers to common questions in basic college level biology, like the chemistry of life, cells, and genetics. Then climb the tree of life to learn about evolution, biological diversity, and animal and plant structures and functions. Cap it off with a look into how our planet's ecology is organized. Using essential biology vocabulary, summary points, and professor reviewed explanations, Course Hero makes learning biology quick and easy!
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Factors that affect the growth of Natural Population
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Factors that affect population size
In this video, I cover the factors that impact population size. A population is a group of organisms of the same species that live in a certain area.
Ecological Carrying Capacity-Biology
What is Carrying Capacity? The carrying capacity is the maximum number of a species that an environment can support.
The maximum number of individuals in a species that an environment can support for the long term is the carrying capacity. Carrying capacity is limited by the limiting factors. These factors may include food, water, shelter, appropriate space, as well as disease, predation, and climatic conditions
If a population nears the carrying capacity. resources become limited and if a population exceeds the carrying capacity deaths began to outnumber births
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This video outlines how to calculate population growth and population limiting factors (biotic and abiotic factors)
Population Growth is Bad for the Planet, but it's Great for the Economy!
This video discusses how population growth adds directly to economic activity and GDP but does so at the expense of natural resources and environmental sustainability. It also discusses how population growth combines with standard of living to determine the total impact on domestic GDP. For example, poor countries with minimal infrastructure may have exploding populations but the standard of living is dropping at the same time, leaving their GDP unchanged in some cases.
Factors Effecting Human Population Growth
Queen Nerdling discusses factors effecting human population growth such as immigration, emmigration, birth rate and death rate.
Population Growth : Meaning, Causes & Impacts | Fertility and Mortality | World Population Growth
This Video deals with the meaning, causes and impacts of Population Growth. The following topics have been taken into account :
1. Meaning of Population Growth
2. Determinants of Population Growth
4. Types of Mortality Rates
6. Types of Fertility Rate
8. Causes of Population Growth
9. Impacts of Population Growth
Link for Stoufer's Migration Theory , Lee's Theory of Migration, Mobility Transition Theory of Zelinsky.
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0:00 : Greetings
0:46 : Introduction to Population
2:12 : Fertility and Types of Fertility Rates
4:35 : Mortality and Types of Mortality Rates
5:55 : Migration
6:33 World Population Growth
7:57 : Population Doubling Time
9:19 : Causes of Rapid Population Growth
14:43 : Impacts of Rapid Population Growth
Thank You For Watching
Exponential and logistic growth, carrying capacity, and limiting factors to population growth.
Effect of Population Growth on Environment
FACTORS AFFECTING POPULATION GROWTH
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