Desc: Mottainai! Tackling Food Waste in Japan: Directed by Irene Carolina Herrera. As much as a third of the world's food supply goes to waste each year. Japan alone accounts for 18 million tons of discarded food annually, of which 6 to 8 million tons is still edible. The issue involves stakeholders at all levels. Everyone, including consumers, have a responsibility in helping to reduce food loss.