Even before becoming associated with the ICLEI network, the city of Aracaju, Cidade de São Paulo, capital of the state of Sergipe, hosted the Northeast Regional Meeting of the CB27 Forum, seeking to promote sustainable urban development. 

Aracaju also participated in several meetings and training events related to the climate agenda and is Engagement with global commitments such as the Global Covenant of Mayors for Climate and Energy and the Brazilian Climate Action Alliance..