Our climate experts

  • 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

  • Schwietzke, Stefan
    International Senior Scientist

    Areas of expertise: Methane emissions, atmospheric measurements, local and global emissions inventories

  • Scott, Will
    Southeast Climate & Clean Energy Director

    Areas of expertise: clean energy and transportation electrification

  • Seong, Joon
    Energy Decarbonization Analyst

    Areas of expertise: Energy policy, Utility policy, Decarbonization

  • Seymour, Scott
    Senior Research Analyst, Canadian Methane Emissions

    Areas of expertise: Laser-based gas detection, laser sensor development, inventory analysis, field work, methane, black carbon

  • Shenette, Ellen
    Director, Net Zero Action Accelerator

    Areas of expertise: Corporate partnerships, Net Zero, energy efficiency, renewable energy, sustainability strategy

  • Shigetomi, Lindsay
    Senior Manager, Fleet Engagement

    Areas of expertise: Fleet electrification, financial modeling, clean transportation policy

  • Smith, Grace
    Attorney, U.S. Legal & Regulatory

    Areas of expertise: Federal environmental and energy regulation, oil and gas standards, greenhouse gas mitigation

  • Sollazzo, Flavia
    Senior Director, EU Energy Transition

    Areas of expertise: European Union legislation, energy, climate and environmental policy, sustainability

  • Southerland, Veronica
    Scientist, Global Clean Air

    Areas of expertise: Air quality, environmental health, chemical policy

  • Spiliotis, Panos
    Senior Manager, EU Transport

    Areas of expertise: European Union transport and environment policy, decarbonization of international shipping

  • Stainforth, Thorfinn
    Senior Policy Analyst

    Areas of expertise: European climate policy, urban road transport and circular economy

  • Steinhilber, Emily
    Director, Climate Resilient Coasts and Watersheds, Virginia

    Areas of expertise: Coastal resilience, climate solutions, environmental law and policy, stakeholder engagement

  • Su, Andy
    Attorney, Transportation

    Areas of expertise: Federal environmental and energy regulation, the Clean Air Act, greenhouse gas and fuel economy standards for light-duty and heavy-duty vehicles

  • Sun, Tianyi
    Senior Climate Scientist

    Areas of expertise: Climate change mitigation, climate modeling, greenhouse gas emissions and metrics, ocean-atmosphere interaction, climate science communication

  • Thompson, Tammy
    Senior Air Quality Scientist

    Areas of expertise: Atmospheric chemistry and physics, air quality modeling, meteorological modeling, emissions, climate/air quality interactions

  • Trask, Beth
    Vice President, Global Energy Transition

    Areas of expertise: Methane and air quality; emission sensors and detection technologies; data mapping

  • Truax, Hawley
    Associate Vice President, State Affairs

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

  • Vidangos, Natasha
    Associate Vice President, Innovation and Technology Policy

    Areas of expertise: Innovation, renewable energy and energy efficiency technologies, U.S. and international energy policy

  • Walker, Derek
    Vice President, Global Energy Transition

    Areas of expertise: