A. Define and provide examples of the following concepts:
1. sustainability: providing what we need today with out hurting the future.
2. freegans: people who live on other peoples waste.
3. stewardship: taking care of people and feeling reasponsible.
4. biomimicry: disigning things based on nature and life.
5. ecological footprint: impact that we leave behind on the earth caused by what we do.
6. overshoot (as it relates to supply and demand): when we take more from the earth than it can give us.

B. What does this equation mean?
area x bioproductivity = biocapacity [SUPPLY]
population x consumption per person x footprint intensity = ecological footprint:
the supply is how much the earth can supply us with and the demand is how much we take from the earth.

C. What is the significance of the year 1987?:that was the year that we began to take more from the earth than it could give us.

D. What happened on October 6, 2007?: U.S used up all of the reasorses that the earth would give us for that year.