here are some figures on how much "trash" accumulates at a number of big 10 football stadiums for home football games ... penn state generates about 40 tons ... and at ohio state, which has a stadium and fan turnout about the same as penn state, the figure is about 16/17 tons ... i have NO idea about how accurate these figures are but ... it does lead to some interesting hypothesis testing speculations http://web.centredaily.com/content/centredaily/2000/10/22/living/941058.htm ================================================================= Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at http://jse.stat.ncsu.edu/ =================================================================