In this video Paul Andersen explains how the world population has undergone exponential growth since the industrial revolution. Predicting the future world population is difficult because each country will grow at different rates. ...

In this video Paul Andersen explains how society influences the natural world through increasing science, engineering and technology. As the world population increases it will require more natural resources and it will impact the global...

In this video Paul Andersen talks about the impacts of human growth on the environment and on themselves. The population, affluence, and destructive technology of a population impact the environment according to the IPAT equation. An...

Is the world overpopulated or underpopulated? While we worry about there being too many people for the planet to support, we can also worry about how fewer people in a given place may affect the economy, what may happen when there are...

Joel E. Cohen of Rockefeller University and Columbia University discusses his work on developing mathematical models to predict human migration patterns. The growing pace of globalization has increased the level of human migration as...

Today we’ll discuss two theories of global stratification. First, we’ll go over modernization theory and Walt Rostow’s Four Stages of Modernization. Next, we’ll explain dependency theory, the legacy of colonialism, and Immanuel...

Exploring models which describe changes in birth and death rates as countries go through five stages of development. How does development impact population age and rate of change? Human Geography - A Changing World - Learning Points. The...

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...

The 21st century is experiencing an Asianization of politics, business, and culture. - Our theories about the world, even about history or the geopolitics of the present, tend to be shaped by Anglo perspectives of the Western industrial...

German mathematician Daniel Regenberg contacted me to share his data on how many people are likely to get infected. I was very skeptical and did not believe it. But when I checked his numbers against...

In this math video, we’ll explore how to determine if a table represents an exponential function using a real-world bacteria growth scenario.
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We start with a culture that begins with 1,000 bacteria, and each hour, the...

Did you know that we can use systems of differential equations to model real world situations? It's true! Let's go through a concrete example from start to finish, to show how we can describe the scenario, come up with equations that...

Only 10% of the world is left handed, so why are so many athletes lefties?

Discover how Lapa Rios eco-lodge integrates sustainability with luxury by using local materials, solar energy, and sustainable practices. Learn about their conservation efforts and the positive impact on the local community and...

A new modeling approach using satellite data will likely to enhance our ability to develop cholera risk maps in several regions of the globe. The model (GCRM) is based on monthly air temperature, precipitation, availability...

A report in the 1970's looks at how society will progress along certain factors. Which path is the most viable moving forward and which one is the most distrastrous? Either way, what does the year 2040 have to do with...

Multi-Level-Marketing (MLM) companies are big businesses around the world and they have rightfully attracted much criticism for questionable business practice. Many have called them illegal pyramid schemes, but today these...

The Congo basin is an unruly ribbon of tropical forest, over a million square miles spanning six countries in Central Africa. It is the second-largest contiguous tropical forest in the world. The basin is home to the classics...

FT Rethink - Water is life, but in a warming world it’s in ever shorter supply. California and Australia have active markets allowing investors to bet on its fluctuating cost. The FT’s Gill Plimmer explores whether water really is just...

Chengdu, a major city in southwest China, has become known as the country's "park city" thanks to its focus on green spaces and modern urban planning. With a rich 3,000-year history and rapid growth in recent decades, it has expanded its...

This live-action video program is about the word biodiversity. The program is designed to reinforce and support a student's comprehension and retention of the word biodiversity through use of video footage, photographs, diagrams and...

Mr. Beat compares and contrasts Chicago and St. Louis, who once competed to be the America's Next Top Model, er, I mean America's Next Top Midwestern City.

The monsoon is a seasonal rain and wind pattern that occurs over South Asia (among other places). Through NASA satellites and models we can see the monsoon patterns like never before. Monsoon rains provide important reservoirs of water...

They predate the dinosaurs and they outnumber us by trillions, yet you might not ever have the pleasure of seeing one. So let us introduce to you, the nematode. Hosted by: Hank Green SciShow has a spinoff podcast! It's called SciShow...