Fujio Kojima leads a company using IT to tackle waste, from litter to fly-tipping and ocean plastics. A unique social media app that encourages users to pick up litter and share their activities, has been a hit with private users and companies alike in 84 countries. The firm has also developed an AI system that scans the streets for garbage, and launched a project surveying plastic waste in rivers and outlets around Japan. Follow a unique business trying to solve the world's garbage problems.