Stephen Lezak

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Stephen Lezak is a writer, advocate, research fellow at the Goldman School of Public Policy, University of California, Berkeley (Carbon Trading Project), and Programme Manager at the Smith School of Enterprise & the Environment, University of Oxford. His research focuses on ensuring integrity in voluntary carbon markets and advancing Indigenous climate justice. He holds a PhD in Polar Studies from the University of Cambridge, where he was a Gates Cambridge Scholar. Lezak has served as an expert reviewer for Intergovernmental Panel on Climate Change (IPCC).

illuminem briefings

Oct 31 2025

Are carbon offsets fixable?

Illuminem Voices

Carbon Capture & Storage · Carbon Market

Most carbon offset programs overestimate their climate impact, highlighting persistent quality issues and urging a shift toward high-integrity, durable carbon removal and alternative financing strategies

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The words 'dream big' written on a black wall

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