Why is Brazil so interested in carbon credits for “forests in exhaustion”?

On the final day in Poznan, a dispute took place between Saudi Arabia and Brazil over the Clean Development Mechanism (CDM). Saudi Arabia wants carbon capture and storage to be included in the CDM. Brazil wants carbon credits for “forests in exhaustion”. Saudi Arabia’s motivation is obvious. It wants to continue extracting and selling oil. But what is Brazil’s motivation? And what, exactly, are “forests in exhaustion”?

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