to explore the idea of consumption and how it varies around the world
material world - http://www.pbs.org/wgbh/nova/worldbalance/material.html
look at each and click the link to see the pictures
After watching the videos below - calculate your consumption compared to other people in the world with this water footprint calculator:
http://environment.nationalgeographic.com/environment/freshwater/water-footprint-calculator/
be sure to get to the second part about water embedded in food production