On 6-8 September 2023 took place the 6th edition of WASTES in Coimbra, Portugal. The objective of this conference was to bring together academia and industry experts from the Waste Management and Recycling sectors, from around the world, offering state of the art knowledge and sharing experiences with all in attendance. Two of our team members, Dr. Helena Passos and Flavia Braga, were present in the conference.