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Sustainability warm-up quiz 1.How many livable planets are there right now for humans to live on? 2.How much of the Earth is biologically productive? 3.With.

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Presentation on theme: "Sustainability warm-up quiz 1.How many livable planets are there right now for humans to live on? 2.How much of the Earth is biologically productive? 3.With."— Presentation transcript:

1 Sustainability warm-up quiz 1.How many livable planets are there right now for humans to live on? 2.How much of the Earth is biologically productive? 3.With how many species does our species share this planet with? 4.How big is the human population today? 1.In 1900? 2.In 2100? 5.How much bio-capacity is there per person on this planet? 6.How big are our Footprints (per person)? The Ecological Footprint represents the biologically productive space necessary to produce what people consume. (acres /person for people) 7.What happens if there is only one cake and one of four party guests takes three times more than average?

2 Footprint Ecological Footprint Accounting Robert Steele, Associate & Senior Trainer The AtKisson Group

3 The Apple Analogy

4 1.First, slice the apple into quarters (4 equal pieces) 2.Set aside 3 pieces. They represent the oceans of the world. 3.Slice the remaining quarter in half and set aside one of the pieces 4.The 1/8 remaining represents the land area where people live, but do not necessarily grow the food they need for life. 5.Next, slice the 1/8 into four equal segments. Set aside three of the segments as they represent the areas that are too rocky, too wet, too cold, too steep or with very poor soil that can’t grow food. It also represents the urban and suburban sprawl, roads, shopping centers, schools, parks, factories, car parks, etc. 6.Finally, carefully peel the remaining slice. The skin represents al of the earth that remains to produce food.

5 Bioproductive segments 18% Biologically Productive Land 11% Deserts, Ice Caps and Barren Land 67% Low- Productivity Ocean 4% Biologically Productive Ocean Bioproductive Segments 22%

6 Constant growth Current world population: 6.2 billion people Annual growth rate: 1.4 % (or 1.7 % in the 1980s) Annual growth ratePopulation in 2100 in billion 1.0% % % % %32.4 Population Dynamics: how we do grow!

7 House on planet

8 People vs. nature ?

9 Earth Shares An Earthshare is the amount of land each person on the planet would get if all the ecologically productive land (and some sea) on Earth were divided evenly among the present world population.

10 Earthshares There are approximately 12.5 billion hectares of ecologically productive land (and some sea) in the world and over 6.2 billion people. Divided equally among everyone, this means each person is entitled to approximately 1.8 hectares of land. Land + Sea = 1.8 hectares/person

11 One hectare

12 Calculate your own Footprint at:

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14 1.Record your Ecological Footprint on the flip chart table and number of planets needed to sustain your lifestyle 2.Now go back and play around with the calculator and try to see about how you can reduce your footprint. 3.Go to the Population link Footprint Instructions……

15 Sitting on footprint What is the Eco Footprint?

16 What is Ecological Footprint? IN SIMPLE TERMS: Ecological Footprint calculates how much land (and some sea) is necessary to sustain our life style. It translates everything you consume, produce and throw out into a land area measurement called hectares (ha). 1 ha = 10,000 m2 Ecological Footprint is an “ecological camera” that takes a snapshot of our current demands on nature. Ecological footprint is a tool for measuring and analyzing human natural resource consumption and waste output within the context of nature’s renewable and regenerative capacity (or biocapacity).

17 What does Ecological Footprint calculate? Categories for consumption Food (energy inputs) Housing (energy inputs and resources) Transportation Other goods and services (clothing recreation, appliances, government services, etc.) Categories for Waste Sewage Carbon Dioxide

18 Island - equitable

19 Remember Earth Shares? Clearly, as the population increases, our Earthshares shrink. How much will each of us have when we hit 8 or even 10 billion people? Currently, are Earthshares equally distributed around the globe? What happens when some people have larger shares? US Ecological Footprint 9.57 ha/person The largest per capita on the planet!!!

20 Island - inequitable

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22 Growth in the Ecological Footprint

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24 Ecological Demand (Ecological Footprint)Ecological Supply (Biocapacity) Footprint Areas for:Biocapacity Areas: Growing Crops0.49Crop land0.53 Grazing Animals0.14Grazing land0.27 Settlements & infrastructure0.07Built-up area0.07 Producing timber & fuelwood0.24Forest0.81 Absorbing excess CO Harvesting Fish0.13Fishing Grounds0.14 Total Global Demand2.2Total Global Supply1.8 Global Footprint Accounts (in global hectares/person, 2001 data) Demand Exceeds Supply By 20% > Global Footprint

25 Moving to cities... Three billion people already live in cities. Cities, directly and indirectly, are responsible for the bulk of the planet’s consumption. They account for 80 % of the world’s use of fossil fuels. By 2030, over 60% of the world’s population will live in cities.

26 Living Large... How big would the glass hemisphere need to be so that the city under it could sustain itself exclusively on the ecosystem contained? From Wackernagel and Rees, 1996, Ecological Footprint Analysis

27 Are we the Boiled Frog? From Wackernagel and Rees, 1996, Our Ecological Footprint.

28 We have Overshot the Earths’ Carrying Capacity Humanity’s Ecological Footprint has overshot the limits of environmental sustainability. Humanity’s total Ecological Footprint increased to 13.2 billion global hectares, growing by 147 global hectares between 1999 and Living Planet Report 2002, WWF International and Redefining Progress Earth’s Sustainability We are here now!

29 Overshoot is growth beyond carrying capacity Carrying capacity limits can be overshot without a “big bang” because of the availability of large capital stocks. Harvests can still increase and money incomes rise, and where there may be indications of ecological stress, all else may seem normal. Ultimately, however, the consequences of eroded natural capital may be felt as eco-catastrophe and population crash. From Wackernagel and Rees, 1996, Our Ecological Footprint.

30 Living planet report cover Download at

31 Sustainability warm-up quiz 1.How many livable planets are there right now for humans to live on? 2.How much of the Earth is biologically productive? 3.With how many species does our species share this planet with? 4.How big is the human population today? 1.In 1900? 2.In 2100? 5.How much bio-capacity is there per person on this planet? 6.How big are our Footprints (per person)? The Ecological Footprint represents the biologically productive space necessary to produce what people consume. (acres /person for people) 7.What happens if there is only one cake and one of four party guests takes three times more than average?


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