Hundreds of stakeholders from across the aviation and renewable energy sectors have helped shape the Carbon War Room’s aviation and renewable fuels strategies. Our board of advisors provides detailed, expert input into our work. And while they cannot individually be considered responsible for the content and analysis contained herein, their diverse perspectives and decades of experience in policy, finance, science and business enhance our ability to collectively move the sustainable renewable fuels market forward.

Ausilio Bauen

Dr Ausilio Bauen is a Director of the consultancy E4tech where he works with industry, investors and governments on the assessment of bioenergy opportunities, and development of related strategies. He is also Senior Research Fellow at Imperial College London and Head of the Bioenergy Group at the Centre for Energy Policy and Technology, where his research covers techno-economic, environmental, market and policy aspects related to bioenergy systems.

Ausilio has 16 years of research and consulting experience, and has leading expertise in the area of alternative transport fuels, including for aviation. He is part of technical and strategic advisory committees of a number of organizations, such as the UK Energy Technologies Institute, Carbon Trust (Algae Biofuels Challenge), German Biomass Research Centre, and World Bank. Since 2006, he has been advising the UK Government on the implementation of the UK Renewable Transport Fuel Obligation. He is currently an advisor to the European Commission’s Flightpath Initiative on alternative fuels in aviation. He has published extensively in the bioenergy area, including leading a recent bioenergy sector review for the International Energy Agency, and a report on aviation biofuels for the UK’s Committee on Climate Change.


Barbara Bramble

Barbara J. Bramble heads the International Climate and Energy Program of the National Wildlife Federation. Over two decades at NWF she has led strategic initiatives including: a) an international advocacy coalition of NGOs for environmental reforms at the World Bank and other multi-lateral development banks; and b) negotiations among private industry and civil society to establish voluntary certification systems for sustainable forest products, biofuels and agricultural commodities. Ms. Bramble serves as Chair of the Steering Board of the Roundtable on Sustainable Biofuels, which has established global sustainability standards for biofuels. She helped to organize the 1992 Earth Summit in Rio de Janeiro and the Rio + 5 Conference in 1997; in the early 2000s she worked with Mexican NGOs to enhance their advocacy and environmental education skills, and chaired the Forest Stewardship Council in the U.S. She serves on the boards of several non-profit organizations in Mexico, Brazil and the U.S. She is an environmental lawyer, and has worked in the Executive Office of the U.S. President, and in private law practice.


Uwe R. Fritsche

Uwe R. Fritsche studied applied physics at the Technical University Darmstadt, Germany, and has worked since 1984 as a scientist at Oeko-Institut where he headed the Energy & Climate Division in Darmstadt. He currently coordinates institute-wide research on system analysis and sustainable resources.

He is an expert in material-flow and life-cycle analysis of energy, biomass/food, and transport systems and respective sustainability scenarios.

He heads Oeko-Institut’s research on LCA and MFA for energy and transport sytems, worked with GTZ, DfID and the World Bank on environmental issues of energy, and contributed to the European and global sustainable energy discussion, especially regarding biomass.

He works with his team on national, European, and global sustainability standards and criteria for bioenergy together with FAO, UNEP and GEF as well as WWF, acts as National Team Leader for the IEA Bioenergy Task 40, co-chairs the Global Bio- Energy Partnership Sustainability Task Force Environment Subgroup, and leads the GBEP workstream on indirect land use changes.


Nathanael Greene

Nathanael Greene is the director of renewable energy policy and is responsible for coordinating NRDC’s work on renewable fuels and power. NRDC aims to quickly and dramatically expand the use of renewable energy in the most sustainable and cost-effective way. Nathanael joined NRDC in 1992 after receiving his Bachelor of Arts Degree in Public Policy from Brown University. He worked two years before getting a Master of Science Degree in Energy and Resources from University of California Berkeley and returned to NRDC in 1996. He has worked there since. He has particular expertise in clean energy technologies including wind, solar and biomass energy, fuel cells, combined heat and power and energy efficiency and in regulations and policies to promote these technologies. For the last decade he has been focusing on assessing the sustainable potential for biofuels and biopower and developing policies to advance them.


Jules Kortenhorst

Jules Kortenhorst invests in clean technologies. Among other roles, he is the Chairman of Topell Energy BV, the leading biomass torrefaction technology company. Until recently Kortenhorst was the CEO of the European Climate Foundation, the largest philanthropic organization in Europe focused on influencing government policy to reduce greenhouse gas emissions.  Before joining the ECF, he served as a member of the Dutch parliament for the Christian Democratic Party, CDA.

Earlier, Kortenhorst was the CEO for International Operations of ClientLogic Corporation, a global leader in outsourced Customer Relationship Management solutions.  Earlier in his career, Kortenhorst worked for eight years for the Royal Dutch/Shell Group in several roles and countries, and in his last position was the Managing Director of Shell Bulgaria.  Kortenhorst graduated as a Baker Scholar from Harvard Business School and holds a master's degree in economics from Erasmus University in The Netherlands. He began his career as an analyst at McKinsey & Co. in Amsterdam.  Kortenhorst is married and has four children.


John J. McKenna

Career investment and corporate banker focused on energy and energy technologies:

  • Vice President Citibank Petroleum Group, New York
  • Managing Director/Head of the Independent Oil and Gas Group, Dean Witter Reynolds (now Morgan Stanley), Houston
  • Managing Director/Head of the Investment Banking Office, Lehman Brothers, Houston
  • CEO McKenna & Company, NASD-member investment bank, Houston (sold to Price Waterhouse in 1996)
  • Managing Director PricewaterhouseCoopers Securities, Houston and Washington
  • Chief Financial Officer STM Power, Inc., Ann Arbor, MI (energy technology company)
  • CEO Hamilton Clark Securities Company, FINRA-member investment bank, Washington

Prior and current board memberships and teaching positions:

  • Former Director: Equus Investments (now NYSE:EQS)
  • Former Director: Proler International Corp. (formerly NYSE:PS)
  • Former Director: STM Power
  • Former Director: University of St. Thomas, Houston, TX
  • Former Adjunct Professor: McDonough Graduate School of Business, Georgetown
  • Director: PROMPT Corporation
  • Director: Rotating Sleeve Engine Technologies, Inc.

Served on the Joint U.S. Department of Energy/U.S. Department of Agriculture, Biomass Research & Development Technical Advisory Committee (2005-2008)
BSFS degree from the Walsh School of Foreign Service at Georgetown University
General Securities Principal


Evan Smith

Evan is an expert advisor on advanced biofuels, and has worked to develop or advise on aviation biofuels since 2007. He was a co-founder and Partner at Verno Systems, an advanced biofuel advisory and management services company whose clients included Qatar Airways, Qatar Science and Technology Park, Delta Airlines, Boeing, and UOP. Before Verno, Evan advised Boeing in developing the company’s knowledgebase and strategy for aviation biofuels. Evan led next generation technology initiatives for Imperium Renewables, the operator of North America’s largest biodiesel refinery.  He served on the Steering Board of the Roundtable on Sustainable Biofuels from 2009 to 2011. He holds a Bachelors Degree in Economics from Yale University.


Maarten van Dijk

Maarten van Dijk works for SkyNRG, the KLM Joint venture that has as mission to make the market for sustainable jet fuel that is affordable. At SkyNRG he is responsible for Business Development and Sustainability. He focuses on feedstock and technology development, upstream investments and sustainability. He’s SkyNRG’s representative in their Independent Sustainability Board (in which WWF-NL, Solidaridad and the Copernicus Institute hold a seat) and is currently co-chairing Chamber 3 of the Roundtable on Sustainable Biofuels.

Maarten studied Chemistry at Utrecht University, focusing his second Master on Renewable Energy Technologies. Before joining SkyNRG he worked for Spring Associates, dedicated to business development, modeling and due diligence in the clean tech sector. In this function he was involved in the development of the biofuel strategy for KLM Royal Dutch Airlines.

On SkyNRG
SkyNRG was set up as a company arising from KLM’s climate action plan to fly aircraft on sustainable jet fuel. SkyNRG has developed the technical, supply chain and marketing capabilities to deliver sustainable jet fuels to any commercial airline globally. The company has a proven track record; supporting KLM to achieve its first trial flight and subsequent commercial flights. It has also delivered product to two other leading airlines and by the end of 2011, it will have started commercial sales to five other leading commercial airline partners (AirFrance, Finnair, LAN, Thomson, Alaska Airlines) for their initial commercial flights.