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In addition to its own experienced team, the American Carbon Registry provides access to Winrock’s internationally recognized team with depth and breadth of technical expertise in carbon accounting as well as its sector-specific scientific expertise, specifically in forestry, agriculture, biofuels and clean energy.

Winrock team members include a co-Nobel prize winner for her contribution to the Intergovernmental Panel on Climate Change (IPCC), co-authors of IPCC methodologies and leaders in clean energy, methane capture,  biofuels, agriculture practices, nitrogen management, land use change, afforestation, reforestation, forest management and avoided deforestation as well as scientists, ecologists, economists, policy analysts and business professionals.

Team members have been participants in standards and methodologies manuals and publications and co-authored protocols for the Intergovernmental Panel on Climate Change (IPCC), Clean Development Mechanism (CDM), U.S. Department of Energy (DOE) 1605(b) program, U.S. Environmental Protection Agency (EPA), U.S. Department of Agriculture (USDA), the USDA Forestry Service, the World Bank, the International Tropical Timber Organization and UN organizations, among others.

Winrock Senior Management
Rodney Ferguson, President and CEO
Mary Harris, Vice President Communications and New Business Services

American Carbon Registry
John Kadyszewski, Director
Mary Grady, Director of Business Development
Jessica Orrego, Director of Forestry
Arjun Patney, Policy Director
Lauren Nichols, Technical Manager
Eric Ripley, Program Manager
Stewart McMorrow, Senior Forestry Associate
Paul Burman, Manager Registry Services
Katie Goslee, Forestry Specialist
Kyle Hemes, Program Associate
Jonathan Winsten, Agricultural Economist

EcoSystems Services
Sandra Brown, Senior Scientist
Sarah Walker, Senior Program Associate
Timothy Pearson, Program Officer II

Clean Energy
Bikash Pandey, Director Clean Energy and Environment
Netanya Huska, Program Assistant

Winrock Senior Management

Rodney Ferguson is responsible for the strategic, programmatic, financial, and management operations of Winrock International in its quest to empower the disadvantaged, increase economic opportunity, and sustain natural resources. Before coming to Winrock, Ferguson worked for 20 years as one of the country’s leading consultants on communications and strategy for the nonprofit sector – most recently with Lipman Hearne, Inc., the largest marketing and communications firm in the U.S. that exclusively serves nonprofits. There he worked closely with the MacArthur Foundation to increase awareness of the MacArthur Fellows — aka “genius” — awards. Ferguson has worked with other major foundations, service providers, and philanthropic organizations, including the Robert Wood Johnson Foundation, the Pew Charitable Trusts, and the National Children's Medical Center. He has worked with dozens of colleges and universities, including the State University of New York (SUNY), Seton Hall University, and the American Council on Education (ACE), as well as assisting with international aid and development projects, including projects in Iraq, Slovenia and Qatar. Born and raised in Alabama, Ferguson graduated summa cum laude from Birmingham Southern College. He also attended the University of St Andrews in Scotland as a Rotary Foundation International Scholar, and graduated from Harvard Kennedy School with a master’s in public policy.

Mary Harris, Winrock Vice President Communications and New Business Services, is a former managing consultant for PA Consulting Group and vice president and director of business development for Hagler Bailly Inc. Harris is an active member of the boards of directors for the National Center for Appropriate Technology and the International Conservation and Education Fund. She is a graduate of St. Joseph's University in Philadelphia and holds an MBA in Finance from the Wharton School.

American Carbon Registry

John Kadyszewski is the Director of Winrock International’s American Carbon Registry (ACR). For more than 30 years he has worked to apply sound science and economics to energy and resource management issues with experience in the U.S. and more than 20 countries in Africa, Latin America, Asia, and Europe. In the early 90s, Mr. Kadyszewski led Winrock’s efforts to develop and field-test peer-reviewed methods and procedures for measuring carbon storage in forestry and agroforestry projects.  He directed collaboration efforts with the electric power industry and the environmental community resulting in the design, development and implementation of multiple forestry, land use change and renewable energy projects to sequester carbon or reduce emissions of greenhouse gases. In the late 90s, he managed development of advanced monitoring tools that combine aerial digital imagery with spatial information systems to improve measurement and analysis of land management practices and associated environmental impacts. He founded the Ecosystem Services Group at Winrock in 2001 and was the co-leader of terrestrial sequestration work for the Southeast Regional Carbon Sequestration Partnership. Today he continues as the co-leader of terrestrial sequestration work for the West Coast Regional Carbon Sequestration Partnership covering potential terrestrial sequestration activities in California, Oregon, Washington and Arizona, including highlighting the significant impact fire has and will have on existing and future carbon stocks on forest lands in the west. He co-led work sponsored by the California Energy Commission’s PIER program to establish baselines and quantify terrestrial carbon sequestration opportunities for the State of California. He is a co-founder of the Environmental Enterprises Assistance Fund and the International Cane Energy Network and has authored studies and reports, testified before congressional committees, and made numerous national and international presentations. He has a BS in engineering from Princeton University.

Mary Grady, ACR Director of Business Development for the American Carbon Registry (ACR), is responsible for strategic development of ACR as a premium environmental standard for carbon offset projects in the U.S. and internationally. She manages ACR business partnerships and client relations and is a frequent speaker on ACR and the carbon markets. Before joining ACR, Mary worked for sixteen years in the renewable energy industry, most recently as Operations Leader at Clipper Windpower. While at Clipper she managed the wind project development operations team, Clipper’s project portfolio in Latin America as well as over 1,500 MW of US projects. Mary worked previously in Winrock’s Clean Energy Group and directed Winrock’s Brazil office, prior to which she managed a solar rural electrification program in the northeast of Brazil. Mary began her renewable energy career at the American Wind Energy Association (AWEA) and served as a consultant to the World Bank on the creation, financing and oversight of rural energy programs. Ms. Grady has an international MBA (MIBS) from the University of South Carolina and undergraduate degrees in Psychology and Spanish, minor in life sciences, from Clemson University. She speaks Portuguese and Spanish.

Jessica Orrego, ACR Director of Forestry, is responsible for overseeing the listing, verification and registration of forest carbon projects developed under the California compliance and early action offset protocols as well as under ACR’s voluntary carbon offset methodologies. Jessica comes to Winrock/ACR with more than 10 years of carbon-related work experience in the areas of offset project development and climate change consulting services. Prior to joining ACR, Jessica served for five years as VP of Environmental Markets at Equator LLC, where she was responsible for the development and implementation of compliance and voluntary market forest carbon projects in their investment portfolio, as well as providing forest carbon project screening and management services to several independent clients. Jessica previously served as Head of US Project Implementation at EcoSecurities in New York, where she managed a team that successfully registered over 40 projects under the Clean Development Mechanism as well as in the voluntary carbon market. Jessica also worked as a Senior Consultant for Energy for Sustainable Development (part of Camco Group) in the UK, focusing on carbon projects in the forestry and renewable energy sectors as well as at the US Climate Change Science Program in Washington DC, where she coordinated carbon cycle research across nine government agencies. She helped to develop the Plan Vivo standard and currently sits on the Board of Directors of the Plan Vivo Foundation. She has a Bachelor of Science in Biology and a Master of Science in Forestry from the University of Vermont.

Arjun Patney, ACR Policy Director, is responsible for advancing policy goals, as well as developing for ACR new opportunities created by policy and legislation. With over 15 years in the environmental field, Arjun most recently served as Interim Director of Finance and Carbon Markets at the USAID’s Forest Carbon, Markets and Communities Program, where he managed projects to foster international forest carbon markets.  Previously, he was Carbon Market Strategist at Cargill, where he established the company’s US carbon trading desk.  Related activities included originating carbon credits, as well as sourcing and evaluating investment opportunities.  Arjun’s career in the environmental field has also included international business development, launching a start-up, and providing consulting services.  He received a B.S. in Civil Engineering from the University of Illinois at Urbana-Champaign, an M.S. in Environmental Management and Policy from Rensselaer Polytechnic Institute, and an MBA from Columbia Business School.

Stewart McMorrow, Senior Forestry Associate, ensures that forest projects entering the California compliance market meet the Regulatory requirements of the California Cap and Trade Program and move efficiently through the project Listing, Verification and Issuance processes. He will also oversee the certification and verification process for forest and land-based ACR voluntary projects, as well as managing the development, review and approval of new ACR methodologies. Stewart has over 18 years of experience in forestry, wildlife ecology, natural resource management, arboriculture, fire ecology, conservation planning, watershed restoration, and carbon project verification. As a former lead verifier for Environmental Services Inc., Stewart has been involved in technical review of over 70 GHG validations/verifications for REDD, IFM and ARR projects in 12 countries as well as conducting some of the first early action and full verifications under the California Cap and Trade Program. He is an accredited Lead Offset Project Verifier, U.S. Forest Offset Project Specialist and Urban Forest Offset Project Specialist with ARB. Stewart maintains a California Registered Professional Forester license and is a Certified Forester under the Society of American Foresters. He has extensive experience in many aspects of forestry work ranging from prescribed fire management, fuels treatments, harvest operations, restoration project management and community wildfire protection. In addition, he previously operated a hazardous tree removal and forest consulting business and was a part time timber faller for almost 20 years. Stewart has managed the wildlife program for California State Parks, forestry program with California Tahoe Conservancy, and was a founding member of the Tahoe Fire and Fuels Team. Stewart began his career working with anadromous fisheries in Northern California as well as working with landowners in the region helping to provide conservation planning tools and resources. Stewart has a B.S. degree in Forestry and Natural Resource Management from California Polytechnic State University. Stewart is an active firefighter in his community and an EMT. Stewart also speaks Spanish.

Lauren Nichols, ACR Technical Manager, assists in the development of ACR standards and methodologies for GHG offset projects, sets up systems and develops templates to streamline registry operations, provides technical support for project review and verification oversight, and assists with client management. Ms. Nichols is also responsible for conducting offset project eligibility screenings for certification on ACR, and coordinating scientific peer review processes for the approval of new methodologies. In coordination with other Winrock staff, Ms. Nichols helped develop the ACR’s offset screening and scoring tool, which provides a mechanism to evaluate the merits of GHG offset projects in a quantitative way. Ms. Nichols has worked in the environmental non-profit arena since 2004 and she holds a master’s degree in Environmental Management, with a concentration of Environmental Economics, from Duke University’s Nicholas School of the Environment and a bachelor’s degree in Biology from Bates College.

Eric Ripley, ACR Program Manager, is responsible for the review California compliance and voluntary market project listings and for providing oversight to project verification, registration and offset issuance for a variety of project types. He will also serve as a team member for offset methodology approvals and as ACR’s representative to the American National Standards Institute (ANSI). Eric comes to ACR with broad carbon market and climate change experience in the areas of carbon offset project verification, project development, and greenhouse gas reporting mechanisms. He has assisted clients with offset project types including landfill gas, agricultural methane, transportation initiatives, industrial gas destruction, biomass, energy efficiency, and fuel switching. His organizational greenhouse gas management experience includes the development, reporting, and verification of climate action plans and greenhouse gas inventories for programs such as The Climate Registry, the Carbon Disclosure Project, and various state and provincial GHG programs. Prior to ACR, Eric was the Senior Environmental Scientist at Ruby Canyon Engineering where he provided carbon offset verification services under numerous voluntary programs and under the AB32 Compliance Offset Program for which he is accredited by the California Air Resources Board as a Lead Verifier for Ozone Depleting Substances (ODS) Destruction and Livestock projects. Eric was previously a carbon management consultant at First Environment, Inc. and was the Greenhouse Gas Program Manager for TUV SUD America, Inc. At TUV SUD America, he was responsible for the company’s entry into the greenhouse gas business in North America. This work required the development of all program policies and procedures to achieve American National Standards Institute (ANSI) GHG accreditation as well as numerous sector approvals under the ANSI program. Additionally, he has worked on the development of sustainability reporting standards for AccountAbility and has interned with the U.S. EPA Environmental Finance Center where he conducted research on market-based environmental policy with a focus on GHG emissions trading schemes. Eric holds a Bachelor’s in Social and Environmental Studies from Indiana University, a Master’s in Environmental Science and Policy from the State University of New York-College of Environmental Science and Forestry, and a Master’s in Business Administration from Syracuse University.


Kyle Hemes, ACR Program Associate, has been focused on the science and policy at the interface of terrestrial ecosystems and the atmosphere for many years. Kyle worked on his undergraduate thesis with the NSF’s Center for Multiscale Modeling of Atmospheric Processes at Colorado State University, studying spatiotemporal patterns in carbon fluxes due to variations in global vegetation phenology. During his studies, he spent a semester immersed in development, upland agriculture, and Thai language at the International Sustainable Development Studies Institute in Chiang Mai, Thailand. Later, Kyle returned to Southeast Asia for two years, working for World Wildlife Fund (WWF) Greater Mekong and Forest Carbon consultants as a technical advisor for various REDD+ and forest conservation projects in Laos, Thailand, and Vietnam. This work ranged from leading field biomass inventories and conducting stakeholder analyses to performing satellite imagery classification for NGOs and development organizations. Kyle has a B.A. in Environmental Science concentrating in chemistry from Colorado College.

Paul Burman, ACR Manager of Registry and Client Services, works with the ACR team to promote science based carbon reductions and transparent transactions that make measureable improvements to our environment. Paul is responsible for managing relationships with current members and building relationships with businesses, universities, non-profits and governmental entities. Before joining ACR, Paul worked at, managing major partnerships and developing significant organizational resources. Paul is the author of the Responsible Purchasing Guide for Carbon Offsets, the 2008 & 2009 Annual Reports, and managed the Blog. Paul holds a Specialist degree from the University of Toronto in Environment and Resource Management.

Katie Goslee, ACR Forestry Specialist, is a forest carbon analyst, focused on AFOLU climate change mitigation projects, including REDD+ assessments; reference level and MRV development; project design for REDD/Avoided Conversion, IFM, and ARR; measurement and monitoring; forest growth modeling; project verification; and quality assurance. She is a forester with 12 years of experience implementing both domestic and international projects funded by the US Forest Service, USAID, the Guyana Forestry Commission, the World Bank, the California Energy Commission, and the private sector. She managed the terrestrial carbon sequestration pilot projects in the Western United States under the West Coast Regional Carbon Sequestration Partnership (WESTCARB), funded by the U.S. Department of Energy and was a member of the Climate Action Reserve forest project protocol update workgroup. She has assisted the Guyana Forestry Commission with development of a Monitoring, Reporting, and Verification System and has conducted trainings on carbon measurement and monitoring and development of REDD+ reference levels in Guyana, Vietnam, and Laos. She has a Master’s Degree in Forestry and a Master of Public Administration and is a California State Registered Professional Forester.

Dr. Jonathan Winsten is an Agricultural Economist with over 20 years of experience working on sustainable livestock production systems and natural resource management.  His focus has been on the adoption of appropriate technology for reducing production costs and improving environmental performance of livestock and crop agriculture. Jon served as the Chief-of-Party for Winrock’s successful Sustainable Dairy Global Development Alliance project in Kazakhstan from 2006-2009.  He has worked and published extensively on the topic of rotational grazing. Jon’s foci also include incentive mechanisms for farmers to address water quality and global climate change, as well as agri-environmental policy analysis and development. Jon leads several projects related to agri-environmental policy, economic incentives for environmental performance from agriculture, and sustainable livestock production systems as a Program Officer for Winrock International. He has taught courses and worked in the U.S., Central and South America, and Asia. Jon has a B.S. in Animal Science and Agricultural Economics and a M.S. in Agricultural Economics from University of Vermont and a PhD from Penn State University in Agricultural Economics.

Ecosystems Services

Dr. Sandra Brown is a Senior Scientist with Winrock’s Ecosystem Services Unit. She is a specialist in the role of land use and land cover change in the global carbon cycle and climate change, the impacts of climate change on terrestrial ecosystems, and the present and potential future role of terrestrial ecosystems for mitigation of climate change. She provides leadership and expertise to many national and international organizations in the field of land use/land cover change and its relation to climate change and mitigation.  Dr. Brown has successfully led over 40 projects for a variety of US governmental, multilateral, and non-profit donors, including the US Department of Energy, US Environmental Agency, US Agency for International Development (USAID), the World Bank, The Nature Conservancy, and Conservation International.  Her more than 26 years of project experience include conducting feasibility studies for climate change mitigation programs, projecting carbon benefits for reforestation programs that improve rural livelihoods, training local NGOs to conduct environmental assessments and data analysis, and apprising policy-makers of the socio-economics of land use change, deforestation, and carbon trading. Dr. Brown has served on many international and national panels and reports related to climate change and land use and forestry.  She has published more than 190 peer-reviewed publications in scientific journals and books.  She served as a co-convening lead author for five UNFCCC IPCC Reports for which she co-led a team of experts representing many countries, sub-disciplines, and points of view. 

Dr. Sarah Walker is a Senior Program Associate in the Ecosystem Services group of Winrock International. Dr. Walker is a climate change mitigation specialist in the agriculture, forestry and land use sector. She has over 10 years experience in carbon cycling modeling and assessing the sustainability and ecological impacts of land use/ land cover change. Dr. Walker provides technical guidance to international afforestation/reforestation and greenhouse gas emission avoidance projects. She is a lead author on several published climate change mitigation technical guidance manuals and training programs. Her experience in international project development and implementation includes projects in Brazil, China, Indonesia, Madagascar, Malawi, Mexico, Mozambique, Peru, Tanzania, and the United States. Dr. Walker holds a MS and PhD in Environmental Sciences from the University of Virginia and a bachelor’s degree in Biology from Smith College.

Dr. Nancy Harris is a Senior Program Associate in the Ecosystem Services group of Winrock International. Dr. Harris is a carbon specialist with over seven years of experience in climate change and land use and is an expert in the analysis and assessment of changes in carbon stocks and flows in the land use and forestry sector. Dr. Harris has worked in the U.S. and throughout the world to provide technical assistance on carbon sequestration and emission avoidance projects at both national and project scales. She has also led efforts to build Winrock’s capacity for completing entity-level greenhouse gas inventories. Dr. Harris helped develop the Voluntary Carbon Standard for avoided emissions projects and has published several peer-reviewed papers on carbon measurement, monitoring and modeling. Dr. Harris holds a PhD in systems ecology from SUNY College of Environmental Science and Forestry and a bachelor’s degree in Biology and Environmental Studies from Tufts University.

Dr. Timothy Pearson is a Program Officer II, Environment, Winrock International. Dr Pearson is a specialist in land use change and forestry with worldwide experience. He has extensive knowledge of the analysis of carbon stocks and flows in ecosystems and in the creation of carbon baselines. Dr Pearson has substantial national and international experience in project planning, experimental design, field methods, scientific method, and analysis. He has detailed knowledge of carbon projects in the land use sector both within the United States and worldwide. Dr Pearson has served as an expert for the CDM Afforestation/Reforestation working group; he has been a verifier for both the Chicago Climate Exchange (CCX) and the CCAR. He was the lead author for the forest measurement guidelines under the 1605(b) program, the Improved Forest Management Guidelines for the Voluntary Carbon Standard, and project development and carbon measurement manuals for international forestry offset projects (CDM). He is a contributing author to the Sourcebook for reducing emissions from deforestation and degradation. Tim Pearson has a PhD in tropical ecology from the University of Aberdeen, UK and a Masters Degree from the University of Cambridge, UK.

Michael Netzer has a Masters degree in Ecology from the University of Otago.  Research included vegetation mapping using remote sensing and GIS technologies, vegetation analysis, and the tracking of red deer using GPS collars.  Michael has works as a GIS specialist for the California Forest Service and for the California State Parks, working on wild fire management projects.  He has experience in ecological field work and botanical analysis in California, Nicaragua and New Zealand.   Michael is currently employed at Winrock International as an Environmental Resource Associate in the Environmental Resource Trust Unit. Michael provides leadership in the development and analysis of carbon project data using field surveys, remote sensing and GIS technologies, and provides training to local project partners.  Duties include facilitating and coordinating GIS applications for carbon assessments and land use change modeling for small and large scale projects both internationally and in the US.  He also conducts high resolution aerial imagery acquisition missions for remote sensing applications.

Silvia Petrova is a Geographic Information System (GIS) Analyst with Ecosystem Services Unit at Winrock International. She has over seven years of experience of applying GIS to variety of projects related to ecosystem monitoring, environmental modeling and urban planning. Her technical expertise includes development and management of spatial information, land use/ land cover change and spatial analyses, land cover classification from satellite images and estimation of deforestation impact on forest carbon stocks through spatial analyses and modeling. She holds a master’s degree in GIS for Environment and Development from Clark University, Worcester, MA and a bachelor and a master’s degree in Computer Science from Technical University in Sofia, Bulgaria.

Clean Energy

Bikash Pandey is Director of Clean Energy and Environment at Winrock International.  Winrock's energy programs bring access to energy for the poor and increase clean electricity on the grid. Modern energy services are used to expand economic opportunity in rural areas and improve health care, education, and living standards. Bikash Pandey's work experience encompasses twenty years in policy review, design, and implementation of a range of clean/renewable energy projects in Africa, Latin America and Asia. A technical specialist in micro- and mini-hydropower systems, he has designed and implemented numerous community-based electrification, clean transportation projects, small-scale mini-grids, and home energy systems. He has extensive experience in developing small-scale renewable energy projects as activities under the Clean Development Mechanism. He also brings long experience encouraging policy change within governments, bilateral and multilateral donors to support clean energy. He holds an M.S. in Energy and Resources, from the University of California at Berkeley and a Bachelor's in Electrical Engineering from MIT.

Netanya Huska is a member of the Clean Energy Team, Environment Group of Winrock International.  As a member of Clean Energy her work involves project management, project back-stopping, proposal development, and proposal coordination.  She holds a bachelor’s degree in Environmental Policy and Planning from Virginia Tech University of Blacksburg, Virginia. While at Virginia Tech she was one of three volunteer coordinators of the Green Fee. The Green Fee was a student led initiative to create a fee included in tuition for all Virginia Tech students. This fee would go towards improving the sustainability and environmental stewardship of Virginia Tech. She worked on this endeavor with two other undergraduate students, faculty, and administrators.  This effort resulted in collaboration between administrators and students to discuss funding energy efficient projects on campus and the proposal to reinstate the recycling program at Virginia Tech. Since Netanya and her co-volunteers graduated in 2007, Virginia Tech has made great strides in becoming more sustainable and improving it’s environmental stewardship; including reinstating the recycling program, hosting the Greening Virginia Universities and Colleges Conference, and making campus sustainability a top priority.

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