Paul Andersen explains how ecosystems interact with biotic and abiotic factors. He explains and gives examples of food chains and food webs. He shows how limiting factors eventually leads to logistic growth. Real data from Yellowstone...

Indonesia is the world’s fourth-largest nation when it comes to population. Only China, India, and the US are larger. The country is a young nation currently experiencing a “demographic bonus,” meaning that 50 percent of its people are...

Some of the fastest-growing metros in the U.S. are also the riskiest when it comes to climate change. And we’ve long puzzled: WHY? In this episode, we explore how the Great Recession, liberal housing policy and well-intentioned community...

Pupil outcome: I can describe the impact of a growing population on our planet and make predictions for the future. Key learning points: - Population growth is the increase in the number of humans on Earth over time. - The growing...

Pupil outcome: I can use context to explain the characterisation of Scrooge as a misanthropic character. Key learning points: - Thomas Malthus was an economist who raised concerns about the sustainability of the growing Victorian...

Wyoming and Colorado are two states that would appear to have many similarities. Location, physical geography, history and even their very shapes mirror each other in interesting ways. However, Colorado has ten times the population as...

With an understanding of individual organisms, let's take a look at population ecology, which looks at the dynamics of populations of organisms. How do populations grow? How are they structured? What is their geography? There is a lot to...

The global population is growing rapidly and soon the world could be overpopulated. Life as we know it could become unsustainable. What can we do to avoid this? Human Geography - A Changing World - Learning Points. There are over 7.5...

Indian governments have implemented different policies to try to curb the country's growing population. Which has been most successful and why? Human Geography - A Changing World - Learning Points. India's population is one of the...

Why is Japan's population ageing? What impacts could this have on the country in future? And how is the government trying to tackle the problem? Human Geography - A Changing World - Learning Points. Japan, like many developed countries,...

Delve into the concept of water scarcity, exploring both its physical and economic dimensions, its global impacts, and the daily struggles faced by communities affected by water shortages. Discover how factors like climate change,...

This video highlights the dramatic population growth of ancient Rome, which reached one million inhabitants due to massive rural-to-urban migration and the influx of cheap grain from Egypt. This demographic explosion transformed Rome...

The best way to start a study of ecology is to look at the scales of ecology, from the smallest things the field studies, to the biggest. On the small end, ecologists can study individual organisms, as well as populations of those...

The video is a lecture on economic growth. The presenter discusses the financial benefits of economic growth, such as increased consumption of goods and services. However, he also highlights the limitations and challenges attached to...

This video explains the difference between long-run and short-run aggregate supply shifts, and provides examples of factors that can cause shifts, such as changes in the cost of production factors and population growth. The video...

The video is a lecture on patterns of employment and unemployment in the UK. The presenter discusses the factors that influence employment patterns, such as consumer preferences, technology, trade, population growth, and social changes....

Trade, taxes, regulation, health care, immigration - here's what the Republicans and the White House have in store for 2020, and beyond, with Mick Mulvaney, ​Assistant to the President and The White Hous​e Acting Chief of Staff.

Dr. Grace Douglas, lead scientist for NASA's Advanced Food Technology at the Johnson Space Center, shares the challenges of supplying food for a trip to Mars. Douglas describes the importance of variety, preservation, and farming on this...

An overview of Elizabethan England, through the eyes of a wealthy woman. She talks about politics, crime, the impact of population growth and the development of towns as well as the treatment of vagrants.



The History Squad...

This video is a lecture presentation on populations. The presenter defines the terms population, community, and ecosystem and explains how these terms are related. The factors affecting the size of a population, such as food supply,...

What is “the environment”? Well, it’s everything, and it’s everywhere, including you and me. Just about every part of human civilization depends on a healthy and stable environment. Yet, human activity is causing pollution, climate...

John Bogle was recently interviewed by INET's "New Economic Thinking" Series by Emma Jordan from Georgetown Law School.<br/>

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...

In this video I explain economic development and the The Demographic Transition Model (DTM). Which shows how three things change over time: the birth rate, the death rate, and the total population. To give it some context, I focus on the...