Cristiano collaborated with the European lighthouse project Bauhaus of the Seas Sails, bridging biology, art, architecture and local communities, in the search for answers to environmental problems in the Ocean; and with the TIDAL ArtS project, which aims to inspire and transform aquatic landscapes through art and science, uniting nature with culture. Recently, Cristiano collaborated with the Thyssen-Bornemisza Art Contemporary (TBA21), and local not-for-profits in Sintra, questioning concepts such as the rights of non-humans, ecological technologies, and decolonial design and cultural practices in rural and peri-urban areas.