To celebrate the 20th anniversaty of the CSIC "Residència d'Investigadors" in Barcelona, the institution has prepared the document "Reptes globals: perspectives des de la Ciència" (Global challenges: perspectives from Science), in which different experts in several fields explain how they see some of the most important challenges that our society is facing. From the ICMAB, Xavier Obradors writes about "Advanced Functional Nanomaterials: the key for the fourth Industrial Revolution". The document is available in Spanish and Catalan.