At an event celebrating the launch of the Stanford Leadership Institute, leaders discussed how they’ve steered organizations through transition – and how to apply those learnings today.

Below are remarks delivered by UN Climate Change Executive Secretary Simon Stiell during the opening of the UN June Climate Meetings in Bonn, Germany, on Monday 8 June 2026.

Join us as we launch two reflection briefs; one by Hugh Pope about the EU citizens’ panel, and one by James MacDonald-Nelson and Hannah Terry about the Esch-sur-Alzette (Luxembourg) citizens’ assembly.

#WorldEnvironmentDay 2026 focuses on climate change—on the urgent signals the Earth is sending and the signals we choose to send back. UNEP’s global campaign calls on all of us to step in #NowForClimate, and steer a world already in motion. See how you can get involved.