Who We Are

The Global Climate and Health Alliance is an alliance of health NGOs, health professional organizations, and health and environment alliances from around the world. Apply for organizational membership.

Board of Directors

The following organizations constitute the board for the Global Climate and Health Alliance.

Fiona Armstrong, BN, MPPP

Founder and Executive Director

Arthur Wyns, MA, MSc

Policy Manager

Courtney Howard, MD

Board President

Claudel Pétrin-Desrosiers, MD

Board Member

Sue Atkinson, MD


Robin Stott, MD


Josh Karliner

International Director of Program and Strategy

Shweta Narayan

Climate & Health Campaigner

Genon Jensen

Executive Director

Anne Stauffer

Director for Strategy and Campaigns

Mohamed Eissa

Liaison Officer for Public Health Issues

Edward Maibach, MPH, PhD

Board of Advisors Liaison

James Irlam

Chair, Climate Energy and Health Special Interest Group, Public Health Association of SA (PHASA)

Elaine Mulcahy

Interim Director

Poornima Prabhakaran MBBS MSc PhD

Head, Environmental Health
Deputy Director, Centre for Environmental Health


Jeni Miller, PhD

Executive Director

Dr. Jeni Miller is Executive Director of the Global Climate and Health Alliance, where she coordinates the joint efforts of national, regional and international health organizations addressing climate change. The Alliance works to minimize the health impacts of climate change and to maximize the health benefits of climate solutions, through leadership, advocacy, policy, research, and engagement. On behalf of the Alliance, Dr. Miller co-chairs the WHO-Civil Society Working Group on Climate and Health. In addition to her work at GCHA, Dr. Miller currently serves as Immediate-Past-Chair of the Environment Section of the American Public Health Association. She has two decades’ experience working on policy- and systems-change strategies to improve community environments for health, in leading initiatives addressing childhood asthma, childhood obesity, climate change, health equity, and healthy community redevelopment. Miller received her doctorate from the University of California – Berkeley.

Email: [email protected] 

Jess Beagley

Policy Lead

Jess leads GCHA’s policy work, including raising the profile of health in UNFCCC negotiations, assessing Nationally Determined Contributions as key components of a healthy and sustainable recovery, working with national partners on local policy processes, and research and analysis to support GCHA’s campaign asks on fossil fuel phase out and other issues. She has a background in public health and environmental determinants, with ten years of experience in policy and programmes. Jess has previously worked with the Lancet Countdown on Health and Climate Change, the Noncommunicable Disease Alliance, and the International Diabetes Federation. Jess completed an undergraduate degree in Physiological Sciences at the University of Oxford, and an MSc in Health in Urban Development at University College London.



Luisa Colasimone

Communications Specialist

Luisa supports GCHA communication and media work and members’ outreach. With over 25 years of experience, she has been working for environmental groups like Greenpeace and the Environmental Paper Network, and organisations such as UNEP and WindEurope as communication expert and project manager. She has dedicated her professional life to the environment, working across continents on global issues such as ecosystems conservation, renewable energies, climate change and climate justice.

Email: [email protected] 

Jen Kuhl

Networks & Engagement Lead

Jen is delighted to bring her passion for climate action, her campaign organizing experience, and public health training to her role as GCHA’s Network and Engagement Lead. In the past decade, she has been a campaigner and organizer with various health and/or climate organizations. Prior joining GCHA in 2019, Jen worked as a research data analyst at Johns Hopkins Bloomberg School of Public Health. Jen values empathy and evidence-based decision making and strives to foster collaboration, connection and mutual learning in her work. Jen lives and works on the unceded territories of the Squamish, Tsleil-Waututh, and Musqueam people.

Email: [email protected]

Milena Sergeeva

Liaison Officer for Latin America

Milena joined GCHA in 2019 as Global Climate and Health Summit event coordinator for GCHA on the ground in Chile, outreaching to health organizations and stakeholders in the region, and connecting their work into the global conversation, and vice versa. Since then she has been working as GCHA’s liaison officer, to continue to advance work on Climate & Health in Chile, as well as to give GCHA an increasing voice in Latin America and the Caribbean.  

Email: [email protected] 

Sophie Smith

Operations Manager 

As Operations Manager Sophie provides management, strategic planning, HR and financial support, helping GCHA to be as organized, effective and impactful as possible.  She leads the development and delivery of operational initiatives and assists in fundraising.  Sophie has worked in climate change for over ten years, previously at the Grantham Institute, at Imperial College London. She has a degree in International Relations and is a PRINCE2 practitioner.

Email: [email protected]


Dave Walsh

Communications Advisor

Dave helps develop strategy and communications for the Global Climate and Health Alliance, ensuring that our message not only makes headlines, but in doing so has the potential to change systemic or policy changes. With close to two decades communicating on climate and environmental issues, Dave has worked with campaigns and organisations such as the Clean Arctic Alliance, the Antarctic Ocean Alliance, Our Fish, Greenpeace International, and the International Polar Foundation.

Email: [email protected] 

Nathalie Parès

Nathalie Parès

Communications Advisor

Nathalie joined GCHA in 2020 to lead our social media presence. With 15 years experience in designing campaign and global communication strategies to further social and environmental justice, Nathalie has worked for NGOs and political institutions, and has a love for creatively engaging people on science, health and the environment.


Email: [email protected] 

Nathalie Parès

Alison Doig, PhD

Health and Climate Network Director

Alison is the Director of the Health and Climate Network (HCN), working with cross-sector experts to advocate for urgent responses to the climate crisis which benefit health for all. Alison is a policy expert and advocate with more than two decades experience in the international development and environment sectors. Her advocacy campaigns have include prioritising health in climate negotiations, calling for equity in the Paris Climate agreement, raising climate ambition in the UK and Europe, and shifting investment towards zero-carbon energy for all. She has previously worked with the Wellcome Trust, Christian Aid and WWF.


Email: [email protected] 


We have no openings at this time.