Rafic Farah's poster for “30 posters on Environment and Development” U.N. Rio Conference, 1992

“In the 1992, in Rio de Janeiro, a wonderful project took place. A poster design and numerous exhibitions on theme ‘30 posters to environment and Development’ were 30 world recognized graphic designers were called to design for the safe and awareness of our earth. The exhibition would take place during the Rio-92 on Modern Art Museum of Rio de Janeiro and simultaneously in all the capitals of Brazil, and on 25 cities around the world and on ONU’s head office in New York and Genebra.
Official gift of Itamaraty on Rio-92, delivered to all world leaders and international delegations. Mobilization of the most prestigious design schools universities of the country and the world took place and major international journals in graphic design talked and shared about it.  Also, the amazing posters – illustrated stories of the Rio-92 were featured in the world’s leading newspapers and magazines such as Time (USA) and Form (Germany).” —https://www.graphicart-news.com/green-economy-and-poverty-eradication-poster-design/#.YyeexOzMJqt

Thank you to Ramon Tejadas for the reference to Rafic Farah's work.