Many universities across the world have committed to becoming carbon neutral within the next few decades. This is encouraging many efforts to reduce waste such as the "My Cup" program, where the university provides a reusable cup to students for hot and cold beverages, and a small discount when it is used. The carbon footprint of a conventional paper coffee cup for a selected American campus is determined to be 1.5011 kg CO_2eq per cup. The reusable cup has a footprint of 3.055 kg CO_2eq. A campus survey found that during the academic year, a typical student consumes a hot beverage 255 times. For an appropriate functional unit, what will be the annual reduction in the campus carbon footprint per student? Setting up this reusable cup program, providing the cups, and operating the program costs the university $5 per cup. If the reduced CO₂ emissions are worth $30 per ton CO_2eq, is the cost of this program justified?