Part 1: Introduction

a) On this worksheet from Geographypods.com make Population Predictions using the population clock above.

b) What do you already know?

Part 2: Global Population Growth

The inspiration for this unit came from the film below by Hans Rosling and the Gapminder website that he set up.

We will be using excerpts from this film throughout the unit.

How did we get to 7 Billion?

"In the early days of human society, there were few rules governing people’s everyday existence. With so few people living in sparsely-populated communities, there was little need for laws to govern how people acquired food, disposed of waste, moved from one area to another, or educated their children. Over the millennia, social structures and environmental management have changed as the human population has grown, necessitating more organisation and cooperation. Advances in science and technology have also been spurred on by population growth. We are continually trying to find ways to provide more goods and services more efficiently to meet the needs of our growing population. The history of almost every aspect of our present lifestyle can be linked to the demographic history of the world." (ZPG Population Education Program World of 6 Billion Activity Guide 2000)

Human Population Through the Ages, Econosystemics.com, Copyright Bryan Long, 2009

a) Population Bench marking task

b) Why has population growth changed over time?

Look back at the benchmarks we used in the previous exercise. Can you use them to explain why population growth has changed over time.

Birth Rates, Death Rates and Natural Increase.

Natural Increase.jpg

How have population growth rates changed trough history.

So population change depends on Birth Rates and Death Rates.

The US Sensus Bureau Population Clock Why is there a discrepancy between this population clock and the one above?

Here is a page that explains the reasons for population growth and the idea of Natural Increase. It also mentions the idea of overpopulation and the problems that this can cause.

7 Billion: How does that compare to other species on the planet?