The event was organized by ICLEI SAMS in partnership with Secretariat for Infrastructure and Environment of , Regions4, Post 2020 Biodiversity Framework – EU Support initiative, the support of CETESB, Fundação Florestal, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), Konrad Adenauer Foundation (KAS), Atlantic Forest Biosphere Reserve (RBMA), the envolvement of ICLEI Africa and Cities Biodiversity Centre representation. The event aimed to formulate contributions from several Brazilian actors regarding key points for the new Post-2020 global framework of the Biological Diversity Convention (CBD), which will be defined in the next COP15 of CBD. To this end, the “Letter of São Paulo” was prepared as a result of the event, as a document that compiled the local, subnational contributions, from the biosphere reserves, civil society entities, from the private sector, among others. With this, the intention is to reach a global agreement for nature and for people to be recognized by the 196 signatory countries to the Convention. The event featured moments of group work in sessions with some thematic axes and also expository moments of practices on these themes.