RQ1: How do CO2 emissions differ in an on-campus collegiate football event (on-CFE) (high-density area) versus an off-campus collegiate football event (off-CFE) (low-density area)?RQ2: How do CO2 emissions by transportation mode differ in an on-CFE versus an off-CFE?RQ3: How do CO2 emissions by miles traveled groups differ in an on-CFE versus an off-CFE?If we assume equal capacity (90,000 spectators) for both stadiums, were there differences in CO2 emissions for an on-CFE versus an off-CFE?