Our policy experts


  • Hull, Hillary Manager, research and analytics

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

    Office: San Francisco

  • Hutson, Andrew M. Director, Fishery Solutions Center

    Areas of expertise: Oceans Program, renewing fisheries, supply chains, corporate partnerships, stakeholder engagement, sustainable development, tropical forests

    Office: Raleigh, North Carolina

  • Jiang, Charlie Policy Analyst, Climate

    Areas of expertise: Federal climate and energy regulation, state clean energy policy, environmental justice, low-income clean energy, carbon pollution from the power sector

    Office: Washington, D.C.

  • Jones, Robert E. Director, Gulf of Mexico, Oceans Program

    Areas of expertise: Recreational management, government affairs, Gulf of Mexico Fishery Management Council

    Office: Austin, Texas

  • Kaiser, Dan Senior Manager, California Habitat Markets

    Areas of expertise: Environmental markets, agriculture sustainability, water quality, non-point source pollution

    Office: San Francisco

  • Karas, Natalie Senior Regulatory Attorney

    Areas of expertise: Natural gas and electricity market design, natural gas policy, utility regulation

    Office: Washington, D.C.

  • Kelly, David Senior Manager, North Carolina Political Affairs

    Areas of expertise: Clean energy, energy efficiency, environmental markets, agricultural sustainability, shale gas development and production, and public policy

    Office: Raleigh, North Carolina

  • Keohane, Nathaniel Senior Vice President, Climate

    Areas of expertise: Carbon markets, economics, climate change, U.S. and global climate and energy policy

    Office: New York City

  • Kiely, Pam Sr. Director of Regulatory Strategy

    Areas of expertise:

    Office: Washington, D.C.

  • Koller, Steve Economics and Policy Analyst

    Areas of expertise: Agricultural economics, climate policy, coastal economics, environmental markets

    Office: New York City

  • 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

  • Kroopf, Sara Manager, Supply Chain

    Areas of expertise: Agricultural economics, environmental markets, sustainable agricultural systems, corporate social responsibility, scope 3 emissions, agricultural emissions accounting, agricultural carbon markets

    Office: San Francisco

  • 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

  • Levitan, Ben Attorney, Legal and Regulatory

    Areas of expertise: federal environmental and energy regulation, Clean Air Act, climate pollution from the power sector

    Office: Washington, D.C.

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

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

    Office: Sacramento, California

  • Leyden, Colin Senior Manager, State Regulatory & Legislative Affairs – Natural Gas

    Areas of expertise: Oil and gas, energy policy, ground-level ozone and air quality

    Office: Austin, Texas

  • Lindley Smith, Sarah Senior Manager, Opportunities and Outcomes

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

    Office: Boston

  • Lujan, Breanna Policy Analyst, Climate

    Areas of expertise: Zero-deforestation supply chain commitments, REDD+, climate change, deforestation mitigation in the Amazon, land sector issues

    Office: Washington, D.C.

  • Madrid, Jorge Manager, California Clean Energy

    Areas of expertise: Climate change and community resiliency, clean economy, green jobs, Latino engagement

    Office: San Francisco

  • 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