Film screening: Becoming Nature Positive

Join us for a screening of 'Becoming Nature Positive', a compelling 30‑minute documentary and discussion with the director afterwards.

Location - Old Theatre, Ground floor Old Building, London School of Economics

Join us for a special screening of "Becoming Nature Positive", a compelling 30‑minute documentary created to cut through jargon and explain—with clarity and authority—what “nature positive” means, why it matters, and what is at stake if we fail to act.

After the screening, Marco Lambertini will be joined by Andrew Steer and Nicola Ranger for a thought‑provoking panel discussion.

A drinks reception will follow.

Meet our speakers and chair

Marco Lambertini is the Convener of the Nature Positive Initiative. Marco was WWF International Director General (2014-2022) and Special Envoy (2023). Before joining WWF he was Global Director of Network and Programme and subsequently CEO of BirdLife International. Marco’s experience and career ranges from ecological field research to high level advocacy and international policy, nature reserve management, integrated conservation and development projects, environmental education, NGO development, communications and campaigning, in many countries all over the world. He is the lead author of the recently published book “Becoming Nature Positive: transitioning to a safe and just future” (2025, Earthscan Routledge, London) and Executive Director of the film ‘Becoming Nature Positive’ (2026, Open Planet Studios).

Professor Nicola Ranger is Executive Director of Earth Capital Nexus and Professor in Practice of Natural Capital, Risk and Finance in the Grantham Research Institute on Climate Change and the Environment at the London School of Economics and Political Science. She leads interdisciplinary research and policy engagement at the nexus of finance, investment, natural capital, resilience and sustainable development with a global focus. Professor Ranger is a globally recognized expert in sustainable finance, climate and nature, and systemic resilience. Her research focuses on integrating climate and nature risks into financial decision-making.

Sir Andrew Steer is Professor in Practice in the Global School of Sustainability at LSE. He is a global leader in sustainable development and climate change advocacy. Sir Andrew served most recently as the founding President and CEO of the Bezos Earth Fund. He was the President and CEO of the World Resources Institute, has held significant positions at the World Bank, including Special Envoy for Climate Change, and was Director General at the former UK Department for International Development (DFID). He is also Chair of the Board of Trustees of the Royal Botanic Gardens, Kew as of February 2026.