Roger Hallam is one of the most influential and controversial campaigners of the 21st century.

He is a founder of Extinction Rebellion, Insulate Britain, and Just Stop Oil, three of the most prominent social movements in recent UK history. Over the past decade, he has worked internationally as an advisor and organiser, helping to catalyse major climate campaigns across Europe, including in Italy, Germany, and Sweden.

Roger’s commitment to social justice spans decades. In his twenties, he dropped out of the London School of Economics to join the peace movement. He later spent 30 years as an organic farmer in Wales, until unprecedented rainfall destroyed over £100,000 worth of crops — a direct experience of climate breakdown that reshaped his political path.

Following this, Roger became a researcher at King’s College London, where he produced award-winning research on the psychology of mobilisation and the strategic design of civil disobedience. In 2018, he authored Common Sense for the 21st Century, selected as Tate Modern’s Book of the Month and widely credited as a foundational text for Extinction Rebellion.

In 2023, the New Statesman ranked Roger as the 34th most influential progressive in the UK — the highest-ranked environmentalist apart from David Attenborough. In 2024, he wrote the introduction to A Green Day: Embracing Climate Action (Hachette India).

Roger’s activism has brought intense legal and media scrutiny. In July 2024, he was sentenced to five years in prison for civil disobedience — the longest such sentence in the UK since the Second World War. His refusal in court to break his oath to tell the “whole truth” to a jury led to his forcible removal by police, an incident widely reported across the British press.

He has appeared on BBC News, BBC HardTalk, and GB News, and has been featured in multiple documentary films, including The Troublemaker and Conscientious Protectors. His writing has appeared across the political spectrum, from The Guardian to The Daily Mail, and he has been interviewed by The Times, The Economist, Republik, De Volkskrant, and Novara Media.

Roger continues to write and organise from prison and under house arrest.

You can read his work at https://rogerhallam.com