Our Experts

Ann Alexander

Senior Attorney, Dirty Energy, Lands Division, Nature Program

Ann Alexander works as a litigator and policy advocate with the Nature Program's Dirty Energy Team—fighting to curb polluting fossil fuel development that threatens the integrity of our public lands, and harms communities living in proximity. Before arriving at NRDC…

Josh Axelrod

Senior Advocate, Nature Program

Josh Axelrod focuses on issues including public land protection and conservation, renewable energy siting on public lands, limiting oil and gas development on public lands, energy transmission, and climate policy. Since joining NRDC in 2013, Axelrod has also developed expertise…

Julee Boan

Manager, Boreal Partnership, International Program

Julee Boan works collaboratively with Indigenous peoples and organizations, local and national conservation groups, plus industry and governments to protect Canada's boreal forest. She has a PhD in forest sciences, where she researched approaches to mitigate the impacts of industrial…

Sharon Buccino

Senior Attorney, Lands Division, Nature Program

Sharon Buccino's current work focuses on energy policy and government transparency. She actively litigates in federal court and advocates before federal agencies and Congress. She has worked to implement effective environmental review and public participation for proposed pipelines, as well…

Giulia C.S. Good Stefani

Senior Attorney, Marine Mammals, Oceans Division, Nature Program

Giulia C.S. Good Stefani works to protect marine mammals, wild places, and communities from environmental injustices. Stefani has worked on a variety of cases and campaigns at NRDC, including the effort to secure greater protection for whales from the U.S…

Juanita Constible

Senior Advocate, Climate & Health, People & Communities Program

Juanita Constible works with partners to advocate for climate-smart policies that protect workers and communities from the health effects of rising temperatures, sea level rise, and more extreme weather. Prior to joining NRDC, Constible oversaw the science and solutions department…

Dr. Marilee Shelton Davenport

Senior Director, Capacity and Collaboration, Science Office

Marilee Shelton Davenport focuses on growing NRDC’s scientific capacity by strengthening the organization’s connections with the external science community, while also supporting NRDC’s work at the intersection of climate and health. She brings two decades of experience working with scientists…

Steve Fleischli

Senior Director, Water Initiatives, People & Communities Program

Steve Fleischli’s area of focus encompasses not only water quality but also the role of water security in climate-preparedness programs and the relationship of water to energy production. Prior to joining NRDC in 2010, he served as the executive director…

Dr. Mark Gold

Director of Water Scarcity Solutions, People & Communities Program

Dr. Mark Gold focuses on building climate resilience through integrated water management solutions for the increasingly arid urban California and the West. From 2019–2022, Gold served as Governor Gavin Newsom's deputy secretary for Oceans and Coastal Policy and executive director…

Ariana Gonzalez

Director, Equitable Policy, Climate & Clean Energy Program

Ariana Gonzalez provides guidance and support for nurturing more just, equitable, and inclusive processes, partnerships, and policies. She also acts as a liaison between her program and the newly created Environment, Equity, and Justice Center at NRDC. Prior to this…

Kabir Green

Director, Federal Affairs, Government Affairs

Kabir Green, who joined NRDC in 2012, focuses on public lands issues, especially NRDC’s efforts to defend America's national monuments. He graduated from George Washington University's Trachtenberg School of Public Policy & Public Administration with a master's in public administration…

Ashok Gupta

Senior Energy Economist, Climate & Clean Energy Program

Ashok Gupta focuses on policies relating to global warming, energy efficiency, renewables, sustainable building design, smart growth, and transportation. During former New York mayor Michael Bloomberg’s administration, Gupta served as NRDC’s representative to the Mayor’s Sustainability Advisory Board and Energy…

Debbie Hammel

Deputy Director, Lands Division, Nature Program

As director of the Land Markets Initiative for NRDC’s Land & Wildlife program, Debbie Hammel concentrates on issues relating to bioenergy and sustainable forest management. With more than 30 years of experience in designing third-party environmental certification systems, she is…

Becky Hammer

Deputy Director, Federal Water Policy; Senior Attorney, Nature Program

Becky Hammer focuses on stormwater runoff, green infrastructure, low-impact development, water-pollution permitting issues, and climate change preparedness. Before joining NRDC in 2009, she interned at the U.S. Environmental Protection Agency. Hammer is a graduate of Harvard College and Harvard Law…

Ashley Jordan

Boreal Corporate Campaign Advocate, International Program

Ashley Jordan provides technical and advocacy expertise for NRDC's corporate campaign to establish stronger protections for the Canadian boreal forest. Jordan joined NRDC in 2018 and previously supported the Canada Project as a program assistant and campaign coordinator. She holds…

Taryn Kiekow Heimer

Deputy Director, Marine Mammal Protection Project, Nature Program

Taryn Kiekow Heimer directs two of the organization’s major campaigns: stopping the development of the environmentally disastrous Pebble Mine project proposed in Alaska’s Bristol Bay and putting an end to commercial whaling. She also leads our work to protect beluga…

Dr. Kim Knowlton

Senior Scientist, Science Office

Kim Knowlton focuses on the public health impacts of climate change and advocates for strategies to prepare for—and prevent—these impacts, especially in vulnerable communities. Her research into the links between climate change and health supports NRDC’s knowledge partnerships with a…

Niel Lawrence

Alaska Director and Senior Attorney, Nature Program

Niel Lawrence oversees NRDC’s efforts to preserve and protect Alaska’s iconic land and seascapes—including the Arctic and vast Tongass rainforest—and helps guide efforts to end climate-wrecking oil exploration on federal lands. Prior to his current role, Lawrence directed NRDC’s national…

Courtenay Lewis

Manager of Ecosystems Policy, Canada Project, International Program

Courtenay Lewis advocates for policy solutions in Canada that benefit communities, species, and the larger ecosystems that support them. Prior to working at NRDC, Lewis promoted sustainable international policies at the Sierra Club, focusing on trade policy and curbing fossil…

Amy Mall

Senior Advocate, Dirty Energy, Lands Division, Nature Program

Amy Mall focuses on policies that protect clean air, clean water, wildlands, communities, and the climate from harmful energy industries, including fracking, oil and gas production, oil and gas pipelines, and forest biomass. Prior to joining NRDC in 2001, Mall…