The socio-ecological Nexus+ approach used by the Brazilian Research Network on Global Climate Change.

Abstract: The Brazilian Research Network on Global Climate Change (Rede CLIMA) is an interdisciplinary network composed of 16 research groups, which interact in different levels and programs. This work aims at building climate change cause-effect research from a Nexus+ perspective, considering the added value of flexibility and adaptability of the concept. The article draws on the Nexus literature alongside a case study in São Francisco River Basin, Northeast Brazil. An additional pillar to the Nexus approach is proposed here, the socio-ecological security, which can be defined as a political-territorial dimension of coupled social and ecological systems. A collaborative research-practice frame was applied to the study region, a hotspot of climate vulnerability in Brazil. Our results highlight the need for this fourth component to address socio-ecological sustainability into context