Diarmid Campbell-Lendrum is the Head of the climate change and health unit at WHO Headquarters.

Zeshan Rawn is the Senior Information Manager at Evelina London Children's Hospital & London Neonatal Operational Delivery Network.

Chinthika Piyasena is a consultant neonatologist at the Evelina Children's Hospital London, Guy's and St Thomas' NHS Foundation Trust.

Mark is a consultant intensivist at Great Ormond Street Hospital for Children. He is lead organiser of Ride for their Lives.

Since 1990, Fiona has written on a broad range of issues for BMJ including the impact of environmental degradation on health.

Richard Smith is a former Doctor, and worked in hospitals in Scotland and New Zealand before joining the British Medical Journal - where he was Editor-in-Chief from 1991 until 2004.

Christine is a primary care paediatrician from France who participated in Ride for their Lives 2021.

Rose is a member of the Great Ormond Street Hospital Young People's Forum and has been a patient at GOSH since birth. Rose participated in Ride for their Lives 2021.

Toby is a patient of the Great Ormond Street Children's Hospital as well as being the Vice-Chair of GOSH's Young People's Forum.

Mat is the Chief Executive of the Great Ormond Street Hospital for Children. He participated in Ride for their Lives 2021 as part of the core group who cycled the whole way from London to Glasgow.

Camilla is the president of the Royal College of Paediatrics and Child Health (2021-), and participated in Ride for their Lives 2021, cycling from London to Glasgow for COP26.

Vincent Lee is a CAD Manager at Great Ormond Street Hospital.

Ewan Wallace is a consultant in paediatric anaesthesia and chronic pain at Glasgow's Royal Hospital for Children.

Nick Martin is the Head of Sustainability and Environmental Management at Great Ormond Street Hospital for Children. Nick participated in Ride for their Lives 2021.

Robin Stott is a founder of the UK Health Alliance on Climate Change and Co-Chair of the Climate and Health Council. Robin participated in Ride for their Lives 2021.

Finella Craig has been a Consultant in Paediatric Palliative Medicine at Great Ormond Street Hospital since 2002. Fin participated in Ride for their Lives 2021 as a member of the core group, cycling the whole 800km from London to Glasgow.

Rachel Naunton is a Children's Physiotherapist at Great Ormond Street Hospital.

Ian Wacogne is a Consultant Paediatrician & Assistant Chief Medical officer for Information Technology at the Birmingham Women's and Children's Hospital.

Michael McKean is a Consultant Respiratory Paediatrician and Clinical Director for the Great North Children's Hospital.

Teri Bayliss is the Charity Director for the Newcastle Hospitals Charity.

James Dixon is the Associate Director for Sustainability & Environment at Newcastle Hospitals.

Phil Branford is the Environmental and Sustainability Officer at Sheffield Children's Hospital.

Tony Waterston is a retired Consultant Paediatrician, who primarily worked in Newcastle upon Tyne.

Alexandra is a Clinician Scientist in Paediatric Immunology. She participated in the first Ride for their Lives, to COP26 in 2021.