Sustainable Forest Biomass Sourcing for CDR: A Buyer's Guide
Mitigating the Risks of Biomass-Based Carbon Dioxide Removal Contracting
Building on insights from the 2024 edition, this latest report offers actionable, evidence-based guidance for biomass-based carbon dioxide removal offtake agreements, promoting sustainable sourcing practices that reduce risks and support global climate goals.
What's Inside
- Insights from nearly 20 biomass certification schemes to guide sourcing.
- Ready-to-use draft contract language and flexible implementation options.
- Practical tools and guardrails to support projects launching by 2026.

Meera Atreya, PhD

Meera Atreya, PhD
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Dr. Atreya has worked in climate technology research and strategic advisory since 2009. She was the lead author of Bioresources within a Net-Zero Emissions Economy, a report by the Energy Transitions Commission evaluating the role of sustainable bioresources in climate change mitigation. While at SYSTEMIQ, a sustainability-focused systems change company, Meera provided strategic advice to a major climate-focused philanthropic foundation and co-authored a report on alleviating the plastic waste crisis; the United Nations Environment Programme is currently using this analysis as the basis for a global plastics treaty. Prior to SYSTEMIQ, Meera was a management consultant at McKinsey & Company, where she was designated as an Affiliate Expert in Renewable Energy & Cleantech and was a key member of the team that steered McKinsey to address its own global carbon emissions.
Meera is based in London and is an advisor to Carbon Gap and former Technical Advisory Group Member of the Science Based Targets Initiative (SBTi). She holds a PhD in Chemistry (Chemical Biology) from UC Berkeley and an A.B. cum laude from Harvard. Dr. Atreya was awarded a US National Science Foundation Graduate Research Fellowship for her doctoral research on engineering enzymes to improve the efficiency, and lower the cost, of converting cellulosic biomass to 2nd-generation biofuels.
Advisor, Science Based Targets Initiative (SBTi) Technical Advisory Group
Science Based Targets Initiative (SBTi) Expert Advisory Group on Beyond Value Chain Mitigation (BVCM)
Carbon Gap Advisory Board
Marble Climate Tech Venture Studio Mentor Programme
Designated Affiliate Expert in Renewable Energy & Cleantech, McKinsey & Company
Social Responsibility Fellow, McKinsey & Company
Graduate Research Fellow, US National Science Foundation (NSF)
Hoopes Thesis Prize Winner, Harvard University
- Net Zero Strategy
- Carbon Markets
- Sustainable Bioresource Supply and Use
- Biofuels
PhD, Chemistry (Chemical Biology), University of California, Berkeley
AB cum laude, Chemical & Physical Biology, Harvard University

Logan Sander
Logan Sander uses his experience in forest management, biodiversity and forest tenure to apply an interdisciplinary approach to his work. Before joining Relae, Logan worked extensively in natural resources management. His early work included conducting vegetation surveys throughout Alaska for the USDA-NRCS and supporting projects to address deforestation in Morocco as a Peace Corps Volunteer. He later conducted agroforestry research and fieldwork in Jamaica and Sri Lanka. Subsequently, as a consulting forester, Logan provided forest management expertise to landowners in the Pacific Northwest. Most recently, he was a researcher on diverse projects supporting community forestry and collective forest tenure for clients such as the World Bank, Forest Carbon Partnership Facility, FAO, and private foundations. Logan has extensive field experience in Alaska, the Pacific Northwest and New England, Morocco, Latin America and the Caribbean, and Sri Lanka.
- Forest Ecology and Management
- Biodiversity
- Environmental Science & Policy
- Climate Justice
MF, Forestry, Yale School of the Environment
BS, Botany, Oregon State University

Shirin Mavandad

Shirin Mavandad
Shirin has a diverse professional background spanning nature based solutions, energy policy, and data analysis. Before joining Relae, she worked as a Research Associate for CLASP where she conducted policyresearch on the efficiency and accessibility of household appliances across an international landscape. Prior to CLASP, she also worked at Indufor North America where she supported client-based consulting work relating to landscape conservation and forestry. During her time in undergrad, Shirin also worked in the UC Davis SCOW lab where she facilitated research on enhancing the carbon sequestration properties of agricultural soils.
- Sustainable Bioresource Supply and Use
- Soil Carbon
- Environmental Science & Policy
- Climate-smart Agriculture
BS Environmental Policy & Planning, University of California, Davis

Sanna O'Connor-Morberg

Sanna O'Connor-Morberg
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Sanna works closely with clients to advise them on high-quality carbon reduction and removal strategies and solutions, bridging science and impact-focused outcomes.
Sanna has worked in environmental science advisory since 2014. She draws on her professional experience in environmental engineering and strategic advisory with expertise in climate earth systems, land use and water resource management, and urban climate adaptation.
Prior to Relae, Sanna was the Carbon Dioxide Removal Lead for the Energy Transitions Commission, publishing Mind the Gap: How Carbon Dioxide Removals Must Complement Deep Decarbonisation to Keep 1.5°C Alive in 2022. While at SYSTEMIQ, a sustainability-focused systems change company, Sanna was research manager for the Food and Land Use Coalition during the publication of Growing Better: 10 Critical Transitions to Transform Food and Land Use (laying out one of the first roadmaps for the global food systems transition). She also provided advisory services to the UNEP International Resource Panel on their 2021 strategic direction. She began her career as an civil and environmental engineer, focusing on climate resilient design for major infrastructure developments.
Sanna is a Fulbright Scholar, and has worked in New Zealand, the United States, and the United Kingdom.
Science and Innovation Graduate Award, Fulbright
International Peace Scholarship for Women, P.E.O
Scholarship, New Zealand Resource and Management Law Association
Scholarship, Carpenter Sperry Fund, Yale School of Forestry and Environmental Studies
Best Practice Award, YMCA Wastewater Management Strategy Plan with Beca Group Ltd, New Zealand Planning Institute
- Environmental Science & Policy
- Carbon Markets
- Net Zero Strategy
- Water Resources Management
MEM, Yale School of the Environment
BE (Honors, first class), Civil and Environmental Engineering, University of Auckland
BA, Political Studies, University of Auckland

Adrianna Sutton

Adrianna Sutton
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Adrianna is a science communicator and editorial professional with over 20 years of experience at the intersection of writing, design, and the environment. She brings a combination of deep scientific literacy and award-winning creative expertise to her work.Before joining Relae, Adrianna served as Communications Manager and Science Writer for Michigan State University's Forest Carbon and Climate Program, where she wrote and edited technical reports and white papers, oversaw digital communications, and provided creative direction for scientific illustrations, videos, and animations.Earlier in her career, Adrianna spent seven years as Art Director at Timber Press, guiding the aesthetic direction of dozens of book projects and mentoring junior design staff. Additionally, she has run an independent design and editorial practice since 2004, serving clients across the private, public, and academic sectors.Adrianna also has boots-on-the-ground experience working as a Forestry Technician with the US Forest Service, where she conducted forest inventory fieldwork across Oregon and Washington and was recognized for her editorial contributions to the Pacific Northwest Research Station’s scientific publications.
Member National Association of Science Writers Winning Book Design for The Living Forest by Joan Maloof and Robert Llewellyn, PubWest 34th Annual Design Awards, 2018Certificate of Appreciation, US Forest Service, Pacific Northwest Research Station, 2007Certificate of Merit, US Forest Service, Pacific Northwest Research Station, 2006Winning Book Cover Design, Annual 50 Books/50 Covers competition, American Institute of Graphic Arts (AIGA), 2005Four consecutive years of winning entries in the categories of Book Cover Design and Scholarly Typographic Book Design, annual juried awards by the American Association of University Presses (AAUP), 2002–2005
- Environmental Science & Policy
- Forest Management
Graduate Certificate, Forest Carbon Science, Policy, and Management, Michigan State University
AAS Natural Resources Technology: Forest Resources, Mt. Hood Community College
BFA Visual Communication, School of the Art Institute of Chicago








