Our science experts


  • Hall, Maurice Associate VP, Ecosystems – Water

    Areas of expertise: Water management, water policy, hydrology, water resources engineering, aquatic ecosystems, sustainable agriculture, irrigated agriculture, water quality, natural infrastructure, civil engineering

    Office: Sacramento, California

  • Hamburg, Steven Chief Scientist

    Areas of expertise: Systems ecology, Biogeochemistry, Climate change impacts, Forest ecology, Soils, C cycle

    Office: Boston

  • Haukebo, Sepp Manager, Private Angler Management Reform

    Areas of expertise: Fisheries management, marine science policy, marine conservation, environmental education

    Office: Remote

  • Horn, Miriam Special Projects

    Areas of expertise: Collaborative and place-based conservation, large-scale sustainable food production, coastal restoration and community impacts

    Office: New York City

  • Hull, Hillary Manager, research and analytics

    Areas of expertise: Natural gas policy, air quality & climate change, energy data & economics

    Office: San Francisco

  • Ivanovich, Casey High Meadows Fellow, Climate Science

    Areas of expertise: Climate variability and change, greenhouse gases, agricultural emissions

    Office: Washington, D.C.

  • Kar, Devyani Coastal Projects and Programs Manager

    Areas of expertise: Coastal management, coastal restoration and protection, hurricane and flood risk reduction, hazard mitigation, and resilience planning

    Office: Remote

  • Karr, Kendra Senior Scientist, Research and Development, Oceans

    Areas of expertise: Oceans Program, Latin America & the Caribbean, renewing fisheries, marine protected areas, Fisheries, Ocean Conservation, data-limited stock assessment

    Office: San Francisco

  • Kelso , Karly Senior Manager, Asia-Pacific Engagement

    Areas of expertise: Asia-Pacific, Fishery management design, small-scale fisheries, rights-based management

    Office: Austin, Texas

  • Kleisner, Kristin Senior Scientist, Oceans

    Areas of expertise: Climate change and fisheries, bio-economic modeling, indicators of ocean health and fisheries status

    Office: Boston

  • Kritee, Kritee Senior Scientist

    Areas of expertise: Climate smart agriculture, Soil carbon, Soil Health, Rice, Methane and nitrous oxide emissions, Nitrogen & Water use efficiency, Environmental microbiology, Stable isotope biogeochemistry, and Mercury pollution

    Office: Boulder, Colorado

  • Kritzer, Jake Senior Director, China Fisheries

    Areas of expertise: Oceans Programs, catch shares, renewing fisheries

    Office: Boston

  • Kuzdas, Christopher Project Manager, Water Program

    Areas of expertise: Water management and governance; public policy; decision support; social-ecological systems; risk management; rural development and planning

    Office: Remote

  • Leslie, Gabriela Research Analyst

    Areas of expertise: Carbon markets, forest finance

    Office: New York City

  • Lewis, Josette Associate Vice President, Ecosystems – Sustainable Agriculture

    Areas of expertise: Sustainable food production, biotechnology, climate smart agriculture, international development.

    Office: Sacramento, California

  • Lindley Smith, Sarah Senior Manager, Opportunities and Outcomes

    Areas of expertise: Marine protected areas, marine spatial planning, fishing communities, cooperative management

    Office: Boston

  • Mahoney, Melissa Manager, Pacific Fisheries Policy

    Areas of expertise: Fisheries Management/policy, human dimensions of fisheries, collaborative fisheries research, electronic monitoring, visual communications

    Office: Remote

  • McCain, Christina Director, Latin America, Climate

    Areas of expertise: Climate and energy policy, carbon markets, Mexico, Brazil, tropical forests.

    Office: Sacramento, California

  • McCormick, Lindsay Project Manager, Chemicals and Health

    Areas of expertise: Environmental Health, Chemical Safety, Children’s Health

    Office: Washington, D.C.

  • McLellan, Eileen Senior Scientist

    Areas of expertise: Water quality, watershed protection and restoration, ecological resilience, land use planning, rural development, environmental policy

    Office: Washington, D.C.