“Reject single-use plastic. Refuse what you can’t re-use. Together we can pave the way to a cleaner, greener world.” This was the message shared this year by UN Secretary General, Antonio Guterres, on World Environment Day. Universidad Europea organized a fun scavenger hunt full of activities to learn to correctly separate trash, recycle, and to learn firsthand about the current state of recycling in Spain and the importance of a circular economy, led by Ecoembes.