Congratulations on earning this NFT, which represents your personal and carpool CO2 savings! By sharing a ride in Lagos with [number of users in the carpool], you saved 2% of CO2 emissions on 11-04-2023 at 11:00:00am. With your contribution to reducing carbon footprints, you're making a difference towards a more sustainable future. This NFT is not just a digital collectible but a proof of your tangible impact. Keep up the good work and let's continue to promote carpooling for a greener world!