Explanation: Member countries of Amazon Cooperation Treaty Organization (ACTO) signed the Belém Declaration in the Brazilian city of Belém.

• ACTO is an intergovernmental socio-environmental block formed by the signing of the Amazon Cooperation Treaty.
• Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, and Venezuela are its members.
• Belém Declaration calls for ensuring the participation of Indigenous Peoples in decision-making.

Source: FORUMIAS