Our experts

  • Patton, Vickie
    General Counsel

    Areas of expertise: Law, climate change, air quality, clean energy

  • Pavlik Slenk, Yesh
    Director, Climate Corps®

    Areas of expertise: Climate Corps, corporate partnerships, corporate sustainability, community management, climate career mentoring

  • Pearen, Holly
    Lead Counsel

    Areas of expertise: Carbon markets, financial regulation, environmental marketing claims

  • Peltz, Adam
    Director and Senior Attorney, Energy Transition

    Areas of expertise: Oil & gas well integrity, oil and gas regulation, carbon capture and sequestration, orphan wells

  • Penny, Gopal
    Scientist, Climate Resilient Water Systems

    Areas of expertise: Hydrological sciences, remote sensing, complex water-agriculture systems, resilience of social-ecological systems, causal inference

  • Pereira, Andrea
    Manager, Corporate Climate Leadership

    Areas of expertise: Policy advocacy, partnerships, corporate sustainability and social responsibility

  • Piris-Cabezas, Pedro
    Senior Director, Global Transportation / Lead Senior Economist

    Areas of expertise: E.U. and global climate and energy policy, REDD+, aviation emissions, sustainable biofuels and the design of cap-and-trade programs.

  • Poon, Sarah
    AVP, Fishery Solutions Center

    Areas of expertise: Fisheries management, training and capacity development

  • Pottens, Ari
    Senior Campaign Manager, Canada

    Areas of expertise: Canadian climate policy and advocacy, Methane emissions from the oil and gas sector, Transition away from fossil fuels

  • Pratt, Jack
    Senior Political Director, Political Affairs

    Areas of expertise:

  • Proville, Jeremy
    Senior Director, Economics

    Areas of expertise: Climate change, GIS, data visualization, remote sensing, land use change, environmental markets

  • Puig-Williams, Vanessa
    Senior Director, Climate Resilient Water Systems

    Areas of expertise: Water policy, water law, environmental law, groundwater management, conservation transactions, stakeholder engagement, endangered species

  • Rhode, Rachel
    Manager, Climate Resilient Coasts & Watersheds

    Areas of expertise: Coastal resilience, adaptation, natural infrastructure, large-scale restoration, ecosystems, rivers and deltas, science-based decision making, marine ecology

  • Rivera-Torres, Mariana
    Manager, Climate Resilient Water Systems

    Areas of expertise: Water policy, transboundary water governance, groundwater, community development, facilitation and collaborative decision-making

  • Robo, Ellen
    Manager, Transportation and Clean Air Policy

    Areas of expertise: Transportation decarbonization, federal environmental and energy regulation and policy, emission standards for light-duty and heavy-duty vehicles

  • Rodriguez-Flores, José M.
    Senior Analyst, Climate Resilient Water Systems

    Areas of expertise: Hydro-economic analysis; multi-benefit land and water management; interdisciplinary groundwater analysis; resilient food-water systems analysis

  • Roedner Sutter, Katelyn
    California State Director

    Areas of expertise: California climate policy, environmental justice, cap and trade, air quality, land use & transportation policy.

  • Rogers, Grace
    Manager, Climate Resilient Coasts and Watersheds

    Areas of expertise: Water resources management and policy, science-based decision-making, natural infrastructure, ecosystems, social sciences, stakeholder coordination

  • Romero-Canyas, Rainer
    Lead Senior Behavioral Social Scientist

    Areas of expertise: Social psychology of sustainability; climate change communication; behavioral interventions; experimental design

  • Rosenstein, Peri
    Senior Scientist, Livestock Systems

    Areas of expertise: Livestock methane emissions, sustainable livestock systems, animal health, veterinary pharmaceutical and biological product research and development, epidemiology, zoonotic diseases