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Add to your agenda! RSB kicks off Additionality Month webinar series with focus on Buyer’s perspective

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RSB is pleased to announce the return of Additionality Month, a four-part webinar series of open-discussion meetings for members of the RSB Book & Claim Platform, dedicated to deepening understanding and engagement around one of the most crucial elements of the book and claim: additionality.

Following the success of last year’s inaugural series, this year’s Additionality Month will once again bring together leading experts and stakeholders from across RSB’s stakeholder community to explore how additional demand for sustainable fuels can lead to real-world positive impacts.

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Additionality & book and claim

The RSB Book & Claim Manual defines additionality as the determination of whether an intervention, such as increased demand for a product or the creation of a new project, has an effect (i.e. increased impact) when compared to the baseline (i.e. absence of such demand or project).

In the context of book and claim, additionality refers to the capacity of increased demand for sustainable aviation fuels (SAF) or sustainable marine fuels (SMF) – unlocked by book and claim systems – to result in increased production and, consequently, greater fossil fuel displacement, reduced greenhouse gas emissions, and a positive impact on climate change, along with broader sustainability benefits. The Greenhouse Gas Protocol defines additionality as a criterion for assessing whether a project has resulted in greenhouse gas emission reductions or removals in addition to what would have occurred in the project’s absence.

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Webinar 1: The Buyer’s Perspective

Date: Wednesday, 4 June 2025
Time: 3:00 PM UK | 4:00 PM CET | 10:00 AM ET

The series will begin with a session exploring the Buyer’s Perspective, featuring insights on how purchasers of sustainable fuels can play a meaningful role in driving additionality through their procurement strategies. Take a look at the agenda below.

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  • Welcome & Introduction to Additionality
    Gill Alker, Book & Claim Manager, RSB
  • Lessons from the Renewable Power Sector
    Anna Moss, Cornwall Insight
  • Panel Discussion
    Arnaud Brolly (EC-Impact), Laura Mechak (McKinsey), Lisa Newman-Wise (Deloitte), Si Liang Puar (GenZero); Moderated by Gill Alker (RSB)
  • Interactive Discussion & Close

This interactive session will allow participants to exchange views, share experiences, and shape the evolving understanding of how additionality can be operationalised in RSB’s Book & Claim System.

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What’s ahead

The series will continue over the coming weeks with three additional sessions:

  • The Seller’s Perspective – 17th June 2025
  • Scope 1 Claimant’s Perspective – 26th June 2025
  • Next Steps for Additionality in Book & Claim – 1st July 2025

Each meeting will offer a unique viewpoint on how different actors can contribute to, and benefit from, a more robust and credible approach to additionality.

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Exclusive access via the RSB Book & Claim Platform

Access to the Additionality Month webinar series is exclusive to members of the RSB Book & Claim Platform. The platform is a dedicated space for RSB members to collaborate, access guidance, and stay at the forefront of developments in book and claim.

Joining the platform not only provides access to Additionality Month but also offers the opportunity to connect with a growing network of sustainability leaders committed to advancing the transition to a sustainable bioeconomy.

If you’d like to know more about additionality, or would like to participate in the next Additionality Month, contact RSB Book & Claim Manager Gill Alker: gill.alker [@] rsb.org

We look forward to welcoming you to this year’s Additionality Month.

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