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Carbon credit offsets sound great in theory. But how well do they actually work in practice? In this new episode of my podcast, I talk with Dr. Benedict Probst about one of the largest reviews ever done on the effectiveness of carbon credit offsets, which covers over 1 billion credits across dozens of studies.
We discuss what his research says, why less than 16% of credits were found to be effective, and what this means for future climate policy, especially as the EU considers offsets in its 2040 targets.
Content includes:
01:08 – What are carbon credit offsets? Definitions and categories
04:15 – A brief history of offsets: Kyoto, voluntary markets, and compliance systems
10:40 – The meta-study: what Dr. Probst and his co-authors did, and why
15:58 – Key result: only 16% of credits represented actual emission reductions
18:02 – Wind projects had a 0% effectiveness: they look good on paper but perform poorly on additionality
23:50 – Forest management projects and “adverse selection”
26:24 – Cookstoves: lessons in behavioral assumptions
30:22 – Chemical gas destruction: high efficiency but with potential perverse incentives
33:39 – Policy risks: how offsets could potentially undermine EU goals
37:10 – Article 6.2 vs. 6.4 of the Paris Agreement: Potential and pitfalls
Sources:
* The paper: Probst, B.S., Toetzke, M., Kontoleon, A. et al. Systematic assessment of the achieved emission reductions of carbon crediting projects. Nat Commun 15, 9562 (2024). https://doi.org/10.1038/s41467-024-53645-z. https://www.nature.com/articles/s41467-024-53645-z (free to download)
* Dr. Probst’s website: https://www.netzerolab.science/
* Politico article providing information on the Commission's proposal to meet up to 3 percentage points of the new target with international carbon credits: https://www.politico.eu/article/eu-comission-climate-target-2036-plan/
#ClimateEconomics #CarbonMarkets #Offsets #ClimatePolicy #Sustainability #ClimateScience #Podcast
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