Our science experts


  • Shelton, Shelby Project Manager, Sustainable Sourcing Initiative

    Areas of expertise: Soil science, nutrient management, sustainable agriculture, agricultural supply chain solutions, conservation, and resilience

    Office: Raleigh, North Carolina

  • Silleck, Elizabeth Senior Conservation Manager, Gulf of Mexico Oceans Program

    Areas of expertise: Environmental Policy, Marine Conservation, Fisheries Management

    Office: Remote

  • Takade-Heumacher, Helen Senior Scientist

    Areas of expertise: Fisheries science, stock assessments, data collection and management

    Office: Raleigh, North Carolina

  • Toombs, Ted Conservation Scientist, Ecosystems

    Areas of expertise: Social-ecological systems, environmental psychology, conservation program design and governance, grassland and shrub-land ecology, livestock grazing and wildlife habitat relationships, endangered species, conservation banking and biodiversity metrics

    Office: Remote

  • Ucar, Ferit Senior Clean Energy Economist

    Areas of expertise: Energy efficiency, distributed energy resources, energy policy, clean energy social justice.

    Office: New York City

  • Uennatornwaranggoon, Fern Manager, Air Quality Policy

    Areas of expertise: Community advocacy, air pollution, goods movement, environmental policy, air quality regulation, partnerships

    Office: San Francisco

  • Villanueva Aznar, Cristina Senior Manager, Strategic Growth and Partnerships

    Areas of expertise: Small scale fisheries, Mexico fisheries policies, strategic partnerships, common pool resources conservation

    Office: La Paz, Mexico

  • Westfall, Katie Senior Manager, Highly Migratory Species Advocacy

    Areas of expertise: Fisheries science and management, coastal and marine policy, community organizing and advocacy.

    Office: Washington, D.C.

  • Wolfe, Christina Manager, Air Quality, Port and Freight Facilities

    Areas of expertise: Air quality, ports and shipping, green freight, transportation technology

    Office: Austin, Texas

  • Wolfe, David Director, Conservation Strategies

    Areas of expertise: conservation biology, conservation of at-risk species, working effectively with private landowners, Safe Harbor, Farm Bill

    Office: Austin, Texas

  • Young, Jeffrey Senior Specialist, Training and Design

    Areas of expertise: Secure fishing rights design, small-scale fisheries, training and capacity building, instructional design, facilitation, e-learning

    Office: San Francisco

  • Zavala-Araiza, Daniel International Scientist

    Areas of expertise: Environmental impacts of energy systems, Climate Change, Sustainability, Social impacts of science and technology

    Office: Austin, Texas

  • Zayas del Rio, Gabriela B. Research Analyst, Office of Chief Scientist

    Areas of expertise: Air quality, clean energy, emerging science, environmental justice

    Office: San Francisco

  • Zhang, Jianyu Vice President, China

    Areas of expertise: China, emissions trading, green supply chain, environmental enforcement, China environmental and climate policy, China power sector

    Office: Beijing, China