Carbon dioxide (CO2) is the gas that is mainly responsible for global warming (the greenhouse effect). The burning of fossil fuels is a major cause of the increased concentration of CO2 in the atmosphere. Carbon dioxide is also the end product of metabolism (see Example 3.13). Using glucose as an example of food, calculate the annual human production of CO2 in grams, assuming that each person consumes 5.0 × 102 g of glucose per day. The world's population is 6.5 billion, and there are 365 days in a year.