1. Use this to create a definition for the ecological footprint
KEY DEFINITIONS:
Ecological Footprint
Carbon Footprint
Biocapacity
Carrying Capacity
Use this to create a definition for the ecological footprint

2. IB definition Ecological footprint
The theoretical measurement of the amount of land and water a population requires to produce the resources it consumes and to absorb its waste, under prevailing technology

3. 6 components of the ecological footprint
Built up land
Fishing ground
Forest
Grazing land
Crop land
Carbon footprint

5. Biological capacity
biological capacity or biocapacity : The capacity of ecosystems to regenerate what people demand from those surfaces.
The biological capacity of an ecosystem is dependent on its production of useful biological materials and in return the absorption of wastes like carbon dioxide emissions.
Biological capacity available per person (or per capita):
There were 12 billion hectares of biologically productive land and water on this planet in 2008.
Dividing by the number of people alive in that year, 6.7 billion, gives 1.8 global hectares per person
This assumes that no land is set aside for other species that consume the same biological material as humans

6. Biocapacity The planet’s biological productive capacity
Currently, the biosphere has approximately 11.2 billion hectares of biologically productive space
Dividing the 11.2 billion hectares available by the global population indicates that there are on average 1.8 bioproductive hectares per person on the planet. 
Currently using 2.2 ha per person.
Living beyond the planet’s biocapacity by 15%

7. When the ecological footprint exceeds biocapacity – Biocapacity deficit

8. By comparing the Footprint measure with the actual bioproductive capacity of individual nations it is possible to determine if that country is in an ecological deficit (using more than it has) or has an ecological reserve.
The US, Japan, the UK, and the United Arab Emirates are all in ecological deficit, using more global hectares than their own land mass provides. Countries with an ecological reserve include Australia, Mongolia, and Gabon.

9. Why might the biocapacity of a nation decrease?
Why might the ecological footprint of a nation increase?
Species extinction, loss of biodiversity, building on land, increase in population, climate change, loss of ecosystems e.g. rainforests, coral reefs

10. Lesson objectives: To assess the value of the ecological footprint
A-Z resource consumption

11. Global hectares – a hectare with world average ability to produce resources and absorb waste

12. Identify the strengths and weaknesses of these calculators:

13. P226 Guiness
Strengths
Weaknesses