Born into a family of musicians and artists, Bebé (21) has quickly emerged as one of the most promising voices in Brazilian music, recognized for her unique vocal tone and striking artistic presence. Often compared to jazz legends such as Billie Holiday and Sarah Vaughan, she gained early attention after being invited by Jô Soares to appear on Programa do Jô in 2011.

Since then, Bebé has performed alongside major orchestras including the Piracicaba Symphony Orchestra and Brasil Jazz Sinfônica, where she was awarded as a New Talent Revelation. In 2021, she released her self-written debut album Bebé, earning recognition from CNN as one of the “10 singers set to change Brazilian music.” She has since performed at major festivals in Brazil and abroad, including Primavera Sound São Paulo and MIL Lisboa, and recently collaborated with rapper BK’ on the album ICARUS.

Currently, Bebé is touring her second original project, SALVE-SE! (2024), released through Coala Records and presented at festivals such as Coala Festival, Rock The Mountain, and Se Rasgum.

Charlotte is a mathematician and social epidemiologist by training, whose career has spanned global health and international development research, science diplomacy, and policy engagement. At Wellcome, Charlotte leads the Solutions Department, Wellcome's impact focused portfolios of research and partnership investments in Climate and Health; Infectious Diseases; Mental Health, and Innovation access, including cross-cutting work on innovation and access, data and AI, and health system financing research.

Prior to joining Wellcome Charlotte spent ten years in government, as Chief Scientific Adviser to the UK Government’s Foreign, Commonwealth and Development Office (FCDO), and previously the Department for International Development (DFID). As the senior scientist in the department, she provided scientific advice to FCDO/DFID ministers and seniors, led the Department's development focused research investments, represented the UK in G20, UN and government to government technical dialogues, and co-led the UK's international science diplomatic network.

Charlotte holds an honorary position of Professor of Global Health and Development at the London School of Hygiene and Tropical Medicine (LSHTM). Over her academic career at LSHTM, she published extensively, led large multi-disciplinary and multi-country research programmes and intervention trials, including on infectious disease epidemiology, HIV prevention, and gender-based violence, and served as an expert advisor on WHO and other UN technical panels.

Charlotte is a fellow of the UK Academy of Medical Sciences, a Foreign Associated member of the US National Academy of Medicine and was made a Companion of the Most Distinguished Order of St Michael and St George (CMG) in the Queen’s birthday honours for her services to violence research and global health.

Emma Howard Boyd has had a distinguished career focused on environmental issues and sustainable finance. She served as Chair of the Environment Agency for England from 2016 to 2022 and was an ex officio board member of the Department for Environment, Food and Rural Affairs during the same period. Appointed by the Mayor of London, Emma chaired the London Climate Resilience Review, publishing a full set of recommendations in July 2024 to help the city prepare for the increasing impacts of climate change such as extreme heat, flooding, droughts, wildfires, sea level rise and storms.

Currently, Emma chairs ClientEarth's Group Board and ClimateArc, and is a Co-Chair of Climate Resilience for All. She is a member of the Supervisory Board of the European Climate Foundation and a Visiting Professor in Practice, Grantham Research Institute on Climate Change and the Environment, London School of Economics and Political Science.

Emma was the UK Commissioner to the Global Commission on Adaptation from 2018 until its sunset in January 2021.

Joe Burton is Sustainability Transformation Project Lead at University College London Hospitals NHS Foundation Trust (UCLH). He is lead author of UCLH’s net zero strategy, Critical Care for Our Climate, which established the organisation’s net zero trajectory, and now leads delivery of its full sustainability transformation programme.

He is co-founder and Chair of The Circular Economy Healthcare Alliance, a coalition of NHS Trusts driving bottom-up sustainability transformation through circular economy principles. He also chairs the Association of Dental Hospitals’ Environmental Sustainability Subgroup and also provides strategic input to national healthcare sustainability initiatives.

Shweta Narayan is the Campaign Lead for the Global Climate and Health Alliance, a global network of over 250 organisations working on the links between health and climate change. She spearheads campaigns focused on fossil fuels, air pollution, climate justice, and health equity. Her efforts aim to ignite a global conversation among leading health professional networks, academic institutions, think tanks, public health experts, environment and climate movements to amplify advocacy on climate change and health.

Based in India, Shweta brings over two decades of experience in advocacy and community organizing on environmental justice issues. She provides legal, media, and scientific research support to residents of pollution impacted communities and workers exposed to toxic chemicals. Additionally, she collaborates with state and local governments in India to incorporate health professional input in developing climate and environmental health policies. Shweta holds an undergraduate degree in business, and a master’s degree in social work with a specialization in Criminology and Correctional Administration from the Tata Institute of Social Sciences in Mumbai.

Shweta's TED Talk on the interdependence of human health and planetary health, and the role of the health community in climate action, presented at the TED Countdown Summit 2021, can be found here.

Sandrine Dixson-Declève is an environmental scientist and an international climate change, sustainable development, sustainable finance, and complex system thought leader. She is Honorary President of the Club of Rome and Executive Chair of Earth4All, dividing her time between the Club of Rome, advising on non-Executive corporate and academic Boards, lecturing, and facilitating difficult conversations. She is a TED global speaker and was recognised by Reuters in 2023 as one of 25 global female trailblazers and by GreenBiz as one of the 30 most influential women across the globe driving change in the low carbon economy and promoting green business.

Letty Thomas is a philanthropy and nonprofit leader with more than a decade of experience in grant-making, network building, and social impact. As Head of Field Building & Networks at FILE (Foundation for International Law for the Environment), she works with partners to strengthen capacity, collaboration, and knowledge-sharing across the climate litigation field. Her career has spanned the humanitarian, criminal justice, and climate sectors, with a focus on developing funding programmes, supporting communities of practice, and supporting systemic change.

Alongside her role at FILE, Letty serves as a Trustee of The Movements Trust, which supports social movements and community-led initiatives working toward a more just, equitable, and sustainable future. She is passionate about the power of collective action and the role that strategic philanthropy can play in enabling organisations and movements to harness the power of the law and access justice.

Andy Haines was Director of the London School of Hygiene & Tropical Medicine from 2001- October 2010 and was knighted for services to medicine in 2005. He trained in family practice and epidemiology and was a practicing family doctor for many years. He developed an interest in climate change and health in the 1990’s and was a member of the Intergovernmental Panel on Climate Change on three occasions. He chaired several international initiatives including the Rockefeller /Lancet Commission on Planetary Health and was the co-Director of the WHO Collaborating Centre on Climate Change, Health and Sustainable Development. He currently co-leads the Pathfinder Initiative on health in the net zero economy, is the senior scientific advisor to the Pan-European Commission on Climate Change and Health and vice chair of the United Nations Independent Panel on the Effects of Nuclear War. He received the Tyler Prize for Environmental Achievement in 2022 and has co-authored many papers on health topics, including climate change and health.

Roger-Mark De Souza is vice president for environment at The Pew Charitable Trusts. In this role, he helps shape and lead a portfolio that works to conserve ecosystems and address critical threats to people and nature, including climate change and biodiversity loss.

De Souza joined Pew with more than 30 years of experience driving innovation and building social, economic, health, and environmental projects around the world, with a focus on empowering local communities. His work combines strategic insight with public and private partnerships to achieve scalable solutions for complex challenges facing the environment. De Souza’s extensive domestic and international experience includes influencing policy change in a nonpartisan manner, cultivating relationships with partners and donors, and co-developing large-scale initiatives.

Throughout his career, De Souza has served in senior leadership positions across multiple organizations. Most recently, he was the vice president of sustainable markets at Pact. His previous roles include chief movement building officer at Amnesty International-USA, president and chief executive officer of Sister Cities International, and director of global sustainability and resilience at The Woodrow Wilson Center. De Souza has also served in organizations such as Population Action International, Sierra Club, Population Reference Bureau, and World Resources Institute.

De Souza holds a bachelor’s degree in French and Spanish and a postgraduate degree in international relations from the University of the West Indies in Trinidad and Tobago and a master’s degree in international development policy from The George Washington University.