Advancing quality in forest carbon

Tim Kramer

CHIEF EXECUTIVE OFFICER

Tim Kramer leads Greenline Climate as Chief Executive Officer, overseeing a portfolio of improved forest management projects spanning more than one million acres across voluntary and compliance markets. With 20 years in environmental management and land-based carbon, he pairs scientific integrity with commercial results while advancing remote sensing and AI in project development. Tim holds a BA in Geography from the University of Iowa and a MESc from Yale University.

Ethel Wilkerson

VICE PRESIDENT OF OPERATIONS

Ethel Wilkerson is Vice President of Operations, overseeing the forest carbon projects from initial scoping through verification and credit issuance. She has expertise in voluntary and compliance IFM projects across diverse landownership including private, tribal, NGOs, and collegiate. An environmental scientist with more than 25 years of experience, she holds an MS in Environmental Science and a Master of Public Affairs from Indiana University. Ethel is based in Maine, where she serves as Board Chair of her community’s land trust.

Sheldon Zakreski

HEAD OF CARBON SALES

Sheldon Zakreski is Head of Carbon Sales, working with buyers to structure prepurchase, forward, and spot sales across voluntary and compliance markets. In carbon markets since 1998, he has secured well over $200 million in credit sales and carbon finance for projects spanning improved forest management, reforestation, and REDD+. Sheldon holds an MA in Economics from the University of Victoria.

Mike Milnar

CARBON ANALYTICS MANAGER

Mike Milnar is Carbon Analytics Manager, leading Greenline’s quantitative analytics team in support of improved forest management projects nationwide. His expertise spans inventory analytics, growth and yield modeling, remote sensing, and feasibility analysis, built over a decade that includes research at Princeton University and Peace Corps service. Mike holds an MS in Science, Technology, and Environmental Policy from the University of Minnesota and a BS in Forest Management from Colorado State University.

Eric Jaeschke

HEAD OF DEVELOPMENT

Eric Jaeschke is Head of Development, overseeing scoping, registration, verification, and issuance of improved forest management projects under ACR, CARB, and Washington Ecology programs. A California Registered Professional Forester, CARB Lead Offset Verifier, and SAF Certified Forester, he brings more than a decade in forest carbon, balancing project integrity with commercial timelines. Eric holds an MS in Forestry from North Carolina State University and a BS from West Virginia University.

Sean Canavan

SENIOR BIOMETRICIAN

Dr. Sean Canavan is Senior Biometrician on Greenline’s quantitative carbon team, ensuring forest carbon analyses are methodologically sound. He brings 25 years in forest inventory, biometrics, and applied statistics across every major US forest region and internationally. Sean holds a PhD in Forest Modeling and an MS in Statistics from Oregon State University, an MS in Forest Biometrics from Michigan State University, and a BS in Mathematics from Carnegie Mellon University.

Maggie Massie

SENIOR CARBON MANAGER

Maggie Massie is a Senior Carbon Manager specializing in improved forest management carbon projects under ACR and compliance frameworks, coordinating the full project lifecycle including verification, registry requirements, and landowner communications. She brings more than ten years across environmental science and forest carbon, with strengths in tribal partnerships and GIS. Maggie holds an MS in Forest Ecosystems from Oregon State University and a BS in Forestry and Natural Resources from UC Berkeley. She recharges outdoors with her horse and dogs.

James Cwiklik

SENIOR PROJECT MANAGER

James Cwiklik is a Senior Project Manager leading end-to-end development and delivery of improved forest management carbon projects. A former lead verification forester involved in audits of more than 50 projects across voluntary and compliance markets, he holds CARB verifier credentials, a Master of Forestry from Michigan Technological University, and a BA in Environmental Studies from the University of Pittsburgh. Away from work he is a reader, musician, and meditation teacher.

Dr. Santosh Subedi

DIRECTOR OF FOREST ANALYTICS

Dr. Santosh Subedi is Director of Forest Analytics, leading the quantitative side of carbon project development and MRV under ACR and CARB protocols. A forest biometrician and SAF Certified Forester with 15 years across academic and private sectors, he provides technical expertise to TIMOs, REITs, Tribes, and private landowners. Santosh holds a PhD in Forest Modeling from Virginia Tech and an MS from the University of Georgia. He likes to hike and jog.

Sunil Nepal

SENIOR CARBON ANALYST

Sunil Nepal is a Senior Carbon Analyst leading technical forest carbon analysis for compliance and voluntary improved forest management projects, from feasibility screening and inventory design through baseline development, verification support, and annual reporting. He holds a PhD in Forestry from Auburn University, an MS from Mississippi State University, and a BS from Tribhuvan University, with deep expertise in growth and yield modeling and spatial analysis.

Chad Carlin, CF

CARBON MANAGER

Chad Carlin is a Carbon Manager managing landowner communications, project planning, inventory, GIS, monitoring, reporting, and verification across a portfolio of compliance and voluntary improved forest management projects. An SAF Certified Forester with 15 years in consulting, industrial, and conservation forestry, Chad holds a BS in Forestry from the University of Maine.

Bini Dahal

FOREST CARBON ANALYST

Dr. Bini Dahal is a Forest Carbon Analyst supporting feasibility analysis for compliance and voluntary projects through growth modeling, carbon quantification, and remote sensing, including LiDAR analysis. She holds a PhD in Forestry and Environmental Resources and an MS in Statistics from North Carolina State University, an MS in Forestry from Mississippi State University, and a BS in Forestry from Agriculture and Forestry University, Nepal. Outside work she loves reading and trying new recipes.

Dr. Afag Rizayeva

SENIOR GEOSPATIAL DATA SCIENTIST

Dr. Afag Rizayeva is a Senior Geospatial Data Scientist working on the remote sensing and land change side of forest carbon. She applies machine learning to satellite imagery for harvest detection, landscape characterization, and forest monitoring, automating digital MRV workflows to align with carbon standards. Afag holds a PhD in Forestry from the University of Wisconsin-Madison and loves learning languages, including reading the Georgian alphabet.

Tanya Ponce

EXECUTIVE OPERATIONS MANAGER

Tanya Ponce is Executive Operations Manager, keeping Greenline Climate running smoothly across executive support, business operations, people operations, and marketing and sponsorship coordination. She brings more than 20 years of experience in operations, marketing, and creative services across California and New York. She holds an Associates degree in Photography and an Advanced Creative Operations Certificate from Rutgers University. Outside work, Tanya volunteers in her community and recharges with long walks and museum visits.

Leah Kovitch

ACCOUNTING MANAGER, CPA

Leah Kovitch is Accounting Manager, overseeing Greenline’s end-to-end operational accounting, GAAP financial statements, forecasting, and federal grant compliance. A CPA, she holds a BS in Accounting from the University of Maine at Augusta and a BA in Human Ecology from College of the Atlantic. Whenever possible, Leah is out enjoying Maine’s forests, mountains, and coastline.