The First Eye on Earth User Conference was held in Dublin, Ireland on 4-6 March 2013 organised by European Environment Agency (EEA). WP9 representatives participated in the conference and also in the parallel session on Citizen Science regarding cooperation on the Marine LitterWatch campaign. A back-to-back meeting was also held where the cooperation was agreed between PERSEUS and EEA regarding also the testing phase of the new Marine LitterWatch smart phone application developed by EEA.