By Sphère , Alice Ncube , Andrew Nzimbi , Anne Lloyd , Axel Schmidt , Aydee Marin Pallares , Dr Oliver Hoffmann , Gabriel Paredes Chávez , Hamza Hamwie , Hassan Jenedie , Ibrahim Hatibu , Jane Davies , Jim Good , Dr. Markus Moke , Miguel Morales , Patrick J. Melancon, PhD , Tristan Hale , Uma Narayanan , Kadi ANABEBOU