The Global Climate and Health Summit took place 16-17 July 2025 at the QEII Centre in London and online. It brought together researchers, policymakers, and climate experts from around the world to address the urgent intersection of climate change and human health.

A call to action on climate and health
Climate change is the greatest health threat facing humanity – driving heat-related illness, worsening air pollution, and undermining global food security. The Summit aimed to catalyse action by creating a space for collaboration, knowledge exchange, and solution-building.

Through a dynamic programme of workshops, group sessions, and keynote talks, the Summit enabled participants to:

• Shape the agenda – Drive policy-relevant action on heat, air pollution, and sustainable nutrition

• Build global networks – Connect researchers, government, and civil society across disciplines and borders

• Turn evidence into impact – Co-create strategies that protect health and the planet

The programme also prioritised the voices of people with lived experience of climate impacts, helping ensure solutions are inclusive and grounded in reality. The Summit is a key step in moving from research gaps to real-world change, especially for those most at risk.

The Summit was free to attend and supported by Wellcome.

Read our Guiding Principles Consensus Statement

Read the statement

If you would like to support our Summit’s statement, please fill in the form below.

Members of our Global Climate and Health Summit Steering Group

Chair

Professor Mike Tipton MBE

Professor of Human & Applied Physiology, University of Portsmouth, UK;
President-elect, The Physiological Society

Vice Chairs

Dr Fortunate Machingura

Director, Climate, Environment & Health, CeSHHAR Zimbabwe;
Lecturer, Liverpool School of Tropical Medicine

Dr Anh Vu

Principal Investigator, £1.3million Wellcome Trust-funded project ‘The health impacts of climate change on precarious outdoor workers in urban Vietnam’;
Research Director, Climate Change Lead, National Centre for Social Research (UK)

Dr Otavio Ranzani

Assistant Professor, ISGlobal, Barcelona, Spain
Researcher, University of São Paulo, São Paulo, Brazil

Heat Resilience Theme

Professor W. Larry Kenney, Ph.D., FACSM, FAPS (Heat Resilience Theme Lead)

Marie Underhill Noll Chair in Human Performance;
Professor of Physiology and Kinesiology,102 Noll Laboratory, Penn State University

Professor Elizabeth Robinson

Professor of Environmental Economics, Department of Geography and Environment, and Acting Dean, Global School of Sustainability, London School of Economics and Political Science

Dr Shouro Dasgupta 

Environmental Economist, Euro-Mediterranean Centre on Climate Change (CMCC);
Visiting Senior Fellow, Grantham Research Institute, LSE 

Professor Ollie Jay 

Professor of Heat and Health; Academic Director, Heat and Health Research Centre, University of Sydney 

Dr Jessica Mee 

UK Research and Innovation Future Leaders Fellow and Senior Lecturer in Female and Environmental Physiology, University of Worcester 

Dr Hannah Pallubinsky

Dept. of Nutrition and Movement Sciences, NUTRIM Institute of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands;  
Healthy Living Spaces lab, Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Germany 

Dr Paul Coleman MPH, FFPH, UKPHR 

Consultant in Public Health, Extreme Events & Health Protection, Centre for Climate & Health Security, UK Health Security Agency 

Dr Josh Foster 

Centre for Human and Applied Physiological Sciences, King’s College London

Professor George Havenith 

Professor of Environmental Physiology and Ergonomics, Environmental Ergonomics Research Centre, Loughborough University 

Air Pollution and Indoor Air Quality Theme

Professor Michael Koehle (Air Pollution Theme Lead) 

Professor, Division of Sport & Exercise Medicine & School of Kinesiology, The University of British Columbia; 
Adjunct Professor, Department of Biomedical Physiology & Kinesiology, Simon Fraser University 

Dr Conor Reynolds P.Eng.

Director, Air Quality and Climate Action Services, Metro Vancouver 

Dr Sarah Koch

Assistant Professor at University of Basel, Department for Sport, Exercise and Health, Switzerland;  
Associated Researcher at Barcelona Institute for Global Health (ISGlobal), Barcelona Spain. 

Dr Luisa Giles

Assistant Professor, University of the Fraser Valley 

Elvis Ndikum Achiri

Co-Founder and President at Global Youth Strategy (GYS) on Air Pollution and Climate Health 

Dr Ruaraidh Dobson

Head of Data Portfolio at the Clean Air Fund

Sustainable Nutrition Theme 

Professor Paul Behrens (Sustainable Nutrition Theme Lead) 

British Academy Global Professor, Oxford Martin School, University of Oxford 

Dr Christian Reynolds 

Reader in Food Policy, Centre for Food Policy, School of Health and Medical Sciences, City St George’s, University of London 

Professor Craig Sale, PhD, FACSM 

Professor of Human Physiology and Nutrition. Deputy Director and Head of Research.  
Institute of Sport, Research Lead for the Department of Sport and Exercise Sciences, Manchester Metropolitan University Institute of Sport, Manchester, UK. 

Dr Oliver Witard 

Reader in Nutrition and Exercise Metabolism  
King’s College London 

Dr Maria Traka 

Head of Food & Nutrition-NBRI, Quadram Institute Bioscience   

Professor Susan Lanham-New 

Head of the Department of Nutritional Science, University of Surrey 

Professor Kristie Ebi 

Professor, Global Health, Professor, Env. and Occ. Health Sciences, Department of Global Health, University of Washington 

Peter Res 

Performance Nutritionist; 
Consultant for the Dutch Olympic Team, NOC*NSF; 
Climavore Athlete Movement 

Cross-cutting Themes

Professor Hugh Montgomery OBE, FMedSci, MBBS, BSc, FRCP (Lond), FRCP (Ed), MD, FRSB, FFICM, FRI, FRGS 

Professor of Intensive Care Medicine, University College London; 
Co-chair, Lancet Countdown on Health and Climate Change; Director UCL Centre for Human Health and Performance’ 

Dr Jason Kai Wei LEE Ph.D., FACSM 

Director, Heat Resilience and Performance Centre, Yong Loo Lin School of Medicine, National University of Singapore; 
Chair, WHO-WMO GHHIN Southeast Asia Heat Health Hub 

Dr Emma Lawrance 

Climate Cares Centre Lead, Imperial College London 

Dr Marina Romanello 

Executive Director, The Lancet Countdown: Tracking Progress on Health and Climate Change 

Mia Kett 

Mia Kett, Senior Policy Adviser – Climate Change, The Royal Society 

The Summit featured 3 core strands: heat resilience, air pollution and sustainable nutrition.

Strand overviews

Heat resilience

With rising global temperatures, heat stress is a growing threat to workers, productivity, and public health. This strand explored:

• Physiological thresholds for heat exposure and early intervention that are win-win for health and productivity
• Sustainable cooling solutions that do not worsen climate change
• Economic and workplace policies to protect vulnerable workers such as gig economy and indoor workers in LMICs

Air pollution & indoor air quality

Climate change is worsening air pollution, affecting respiratory and cardiovascular health. This strand explored:

• Climate-driven wildfires, heatwaves, and urban pollution impacting air quality
• Individual, community, and policy-level solutions for indoor air quality
• Equitable interventions to ensure clean air access for all

Sustainable nutrition

Food systems are a major driver of climate change but also a key opportunity for health and sustainability. This strand explored:

• The co-benefits of climate-friendly diets for human and planetary health
• Strategies to overcome economic and cultural barriers to dietary shifts
• Policy frameworks that align food security, public health, and climate goals