<P> The Tucson Garbage Project is an archaeological and sociological study instituted in 1973 by Dr. William Rathje in the city of Tucson in the Southwestern American state of Arizona . This project is sometimes referred to as the "garbology project". </P> <P> Dr. Rathje (also known affectionately as "Captain Planet") and his students studied the contents of Tucson residents' waste to examine patterns of consumption . Quantitative data from bins was compared with information known about the residents who owned them . The results have shown that information people freely volunteered about their consumption habits did not always tally with the contents of their waste bins . For example, alcohol consumption was proven to be significantly higher in reality than in the questionnaires completed by the people studied . Such findings have highlighted the difference between people's self - reported and actual behaviors . </P>

The garbage project demonstrated which of the following about america’s landfills