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The Facts A major environmental restoration project is gaining momentum in Rio de Janeiro's Guanabara Bay, a promise ten years in the making. The Green Guanabara Bay Project has planted 30,500 mangrove seedlings across 12.2 hectares in the Guapi-Mirim Environmental Protection Area. The initiative is executed by the NGO Guardians of the Sea in partnership with the Urban Sea Institute. Additional restoration efforts include a separate mangrove project covering 65 hectares led