Reducing CO2 emissions is now one of the most important problems that we have to tackle. There is a report saying that choosing local products is effective. The number of people who are interested in food miles has been increasing. In 2008, some university cafeterias in the Kansai area showed food miles and CO2 emissions on the menu. Many students said that they had never paid attention to the sources of food before. " I didn't know where our food came from," one student said. "Now the information on the menu leads me to choose food with fewer good miles and CO2 emissions." "Food-mile campaigns" have started in many parts of Japan. You may see information about food miles at supermarkets and restaurants.