Being smart about our "shit", is what may save us in the future.
Barbara Penner expresses her academic knowlegde of toilets and what goes into them. How much do we flush away, and what people can do to conserve their waste, not only the "stuffs" that goes through us, but the water that is going through the pipes as well. It doesn't take a 'rocket surgeon' to know, that in developing countries, water is scarce and highly valued. So it is a opportunity to develope toilets that do not need the use of water, and uses our human wastes intellegently.