© 2011 Pearson Education, Inc. Lab : The Ecological Footprint Exercise AP Environmental Science Mr. Grant Lesson 13.

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© 2011 Pearson Education, Inc. Lab : The Ecological Footprint Exercise AP Environmental Science Mr. Grant Lesson 13

© 2011 Pearson Education, Inc. Objectives: Review Chapter 7 Multiple Choice Questions Chapter 24 Pre-Reading: In class exercise to help activate background knowledge, make connections, stimulate predictions, and form a purpose for reading. In this exercise you will use an online Ecological Footprint Calculator to calculate the environmental impact of your own choices and then see how your individual impact scales to people from other nations.

© 2011 Pearson Education, Inc. Review Chapter 7 Multiple Choice Questions

© 2011 Pearson Education, Inc. Chapter 24 Pre-Reading…

© 2011 Pearson Education, Inc. In this exercise you will use an online Ecological Footprint Calculator to calculate the environmental impact of your own choices and then see how your individual impact scales to people from other nations. Calculating Ecological Footprints

© 2011 Pearson Education, Inc. Calculating Ecological Footprints Mathis Wackernagel and his many colleagues at the Global Footprint network have continued to refine the method of calculating ecological footprints – the amount of biologically productive land and water required to produce the energy and natural resources we consume and to absorb the waste we generate. According to their most recent data, there are nearly 2.1 hectares (5.2 acres) available for every person in the world, yet we use on average more than 2.7 ha (6.7 acres) per person, creating a global ecological deficit, or overshoot of about 30%. Compare the ecological footprints of each of the countries listed in the table. Calculate their proportional relationship to the world’s population average ecological footprint and to the land available globally to meet our ecological demands. CountryEcological footprint (hectares per person) Proportion relative to world average footprint Proportion relative to world area available Bangladesh (0.6 ÷ 2.7)0.3 (0.6 ÷ 2.1) Tanzania1.1 Colombia1.8 Thailand2.1 Mexico3.4 Sweden5.1 United States9.4 World Average (2.7 ÷ 2.7))1.29 (= 2.7 ÷ 2.1) Your Personal Footprint

© 2011 Pearson Education, Inc. Calculating Ecological Footprints 1)Why do you think the ecological footprint for the people in Bangladesh is so small? 2)Why is it so large for people living in the United States? 3)Based on the data in the table, how do you think average per capita income affects ecological footprints?

© 2011 Pearson Education, Inc. Calculating Ecological Footprints 4) Go to the online footprint calculator and take the test to determine your own personal ecological footprint. Enter the value you obtained in the table, and calculate the other values as you did for each nation. How does your footprint compare to those of people in the United States? How does I compare to that of people from other nations? Name three actions you could take to reduce your footprint.

© 2011 Pearson Education, Inc. Calculating Ecological Footprints CountryEcological footprint (hectares per person) Proportion relative to world average footprint Proportion relative to world area available Bangladesh (0.6 ÷ 2.7)0.3 (0.6 ÷ 2.1) Tanzania1.1 Colombia1.8 Thailand2.1 Mexico3.4 Sweden5.1 United States9.4 World Average (2.7 ÷ 2.7))1.29 (= 2.7 ÷ 2.1) Your Personal Footprint