How do ecological footprints work?

1. Food/drink

2. Energy usage

3. 1. They calculate our ecological footprint by looking at aspects of our daily life, such as:

4. The amount we recycle

5. There are around 12 billion hectares in the world, meaning that we need to use 1.3 to 2 hectares per person.

5.1. The average human being in the middle east uses 13 planets worth of resources.

6. 3. They use the average planet usage for each country to create an average for the world, therefore giving us the world's ecological footprint.

7. Emissions

8. What materials everyday objects are made of

9. 2. They use these numbers to calculate how many planets' resources it would take to sustain that lifestyle.