Richard J Rogers worked as a barrister in London, an attorney in San Francisco, and a senior United Nations lawyer at several UN war crimes tribunals – he was the Senior Legal Officer at the Appeals Chamber of the UN Tribunal for Yugoslavia, Principal Defender at the Extraordinary Chambers in the Courts of Cambodia, and Chief Legal System Monitor in Kosovo. Richard has particular expertise in the cross-section between international criminal law and mass environmental destruction, and testified to this issue before the US Congress. He founded Global Diligence - specialising in international crime - and Climate Counsel - which focuses on environmental justice. Richard is on the advisory board of the Stop Ecocide Campaign. He has lived and worked in Africa, Asia, America and Europe. Richard was Deputy Co-Chair of the Independent Expert Panel for the Legal Definition of Ecocide, that released the proposed definition on 22 June 2021.