Our advocacy experts


  • Ryan, Sarah Manager, Research & Analytics

    Areas of expertise: Vehicle electrification, data modeling, grid modernization

    Office: Austin, Texas

  • Sánchez, Sergio Senior Policy Director, Global Clean Air

    Areas of expertise: Climate and clean air policy, international development, integrated environmental management systems, comprehensive air quality management, sustainable transport, United Nations

    Office: Remote

  • Saunders, Nichole Senior Attorney, Energy

    Areas of expertise: Oil and gas policy, oil and gas wastewater

    Office: Austin, Texas

  • Schiller, Anna Water and Lands Project Manager, California Water Program

    Areas of expertise: Conservation biology, spatial analysis, groundwater management, land use planning

    Office: San Francisco

  • Schwartzman, Steve Senior Director, Tropical Forest Policy

    Areas of expertise: Climate change, tropical forest policy, Reducing Emissions from Deforestation and forest Degradation (REDD), Brazil and the Amazon, indigenous peoples, incentives for environmental protection

    Office: Washington, D.C.

  • Shirreffs , Dawn Florida Director

    Areas of expertise: Political affairs, partnerships, non-profit management, resilience

    Office: St. Petersburg, Florida

  • Snider, Natalie Associate Vice President, Climate Resilient Coasts and Watersheds

    Areas of expertise: Ecosystems, large-scale restoration and protection planning, science communication, natural resources management and policy, science-based decision making, ecosystem services, natural infrastructure, rivers and deltas.

    Office: Washington, D.C.

  • Spiller, Beia Lead Senior Economist

    Areas of expertise: Electricity pricing, distributed energy resources, energy demand, transportation, air quality, shale gas

    Office: New York City

  • Stadler, Felice Vice President, Political Affairs

    Areas of expertise: Climate change, methane policy, strategic partnerships

    Office: Washington, D.C.

  • Sun, Fang Manager, Oceans Program

    Areas of expertise: Oceans

    Office: Beijing, China

  • Thomas, Ben Senior Policy Director, Agriculture

    Areas of expertise: Agricultural and food law, policy implementation, political strategy, coalition building

    Office: Austin, Texas

  • Truax, Hawley Southeast Regional Director

    Areas of expertise: Policy analysis, writing/editing, institutional giving, strategy development, regional politics and culture

    Office: Raleigh, North Carolina

  • Uennatornwaranggoon, Fern Manager, Air Quality Policy

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

    Office: San Francisco

  • Usmani, Sabah Analyst, EDF+Business, Clean Air Innovation

    Areas of expertise: Urban Planning, Air Quality, Spatial Analysis, Urban Health, Transportation, Environmental Sustainability, Energy Planning

    Office: New York City

  • Vogel, Sarah Senior Vice President, Health

    Areas of expertise: Environmental health, chemical safety, endocrine disruptors

    Office: Washington, D.C.

  • Warner, Mandy Director, Climate & Clean Air Policy

    Areas of expertise: Climate and air policy, power sector issues, pollution control technologies, regulatory policy, hazardous air pollutants, conventional pollutants, Congress.

    Office: Washington, D.C.

  • Westfall, Katie Director, Oceans Climate Strategies

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

    Office: Washington, D.C.

  • Whittle, Daniel Senior Director, Caribbean

    Areas of expertise: US environmental law and policy, Cuban marine and coastal resources law and policy , energy policy, rights-based fisheries management, marine protected areas, international government US environmental law and policy, Cuban marine and coastal resources law and policy , energy policy, rights-based fisheries management, marine protected areas, international government US environmental law and policy, Cuban marine and coastal resources law and policy, energy policy, rights-based fisheries management, marine protected areas, international government relations

    Office: Raleigh, North Carolina

  • Winn, Rosalie Senior Attorney, U.S. Clean Air

    Areas of expertise: Federal environmental and energy regulation, the Clean Air Act, emissions standards for the oil and gas sector

    Office: Boulder, Colorado

  • Yang, Jun Manager, Enforcement

    Areas of expertise: Environmental policy and enforcement

    Office: Beijing, China