Fuente: WIPO "circular economy" The present invention concerns a computer-implemented method and system (200) for generating, using and tracking a label (53) on a product (50) and/or on a product packaging. Such label (53) carries information that can be mandatory and also can be non-mandatory. The system (200) according to the invention is configured to perform a computer-implemented method, which system includes: a first computational unit (10) comprising a first user interface (11), a second computational unit (20) comprising a second database (24), remote data sources (16) which provide data to the second computational unit (20), a third computational unit (30) comprising a second user interface (12), a reading and displaying device (40) in a next life receptacle (42), configured to read label (53) and provide the second user with a unique confirmation code sent to second computational unit (20), which then feedbacks a message to second user on their personal carbon footprint.