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Bob O’Sullivan

Robert O’Sullivan is the Head of International Projects for GreenCollar. Robert has worked in the carbon market for almost 20 years, with a focus on law, policy, and transactions. He started his career as a lawyer in the World Bank where he worked on the very first carbon market projects and funds. Robert helped develop forest carbon methodologies and standards for the World Bank and Verra, worked on carbon projects and policy in Africa, Latin America, Asia and Australia with governments, civil society, and leading commodity, energy, and technology companies amongst others.

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17 Sep 2026

Indian agroforestry project supporting thousands of tribal farmers receives high-integrity ‘A’ rating

Media release:  One of the central challenges in nature-based carbon removal projects is how to restore underutilized land to create productive agroforestry systems at scale while also benefiting communities and...
10 Sep 2026

Market Updates

11 Feb 2026

Nature-based carbon accounting: How “integrity” has evolved, and what still matters

Opinion piece: Nature-based carbon projects have operated for more than 25 years. Early assumptions that greenhouse gas accounting would be simple have proven wrong. What has occurred instead is a...
31 Oct 2025

‘World leading’ land-based project to improve water quality on the Great Barrier Reef over 25 years will help drive action at scale

Media release: The construction phase of a major new project dedicated to improving water quality on The Great Barrier Reef has just been completed at a gully rehabilitation project in the Bowen River catchment in north Queensland.