London Climate Action Week 2026 highlighted the crucial role of culture in climate solutions, with events focusing on climate justice, adaptation, and international policy. The Cool Off for Culture campaign was launched to provide cooling spaces during heatwaves, while the Third International Seminar for Culture and Climate showcased Brazil's leadership in promoting cultural solutions to climate challenges. Discussions emphasized the importance of cross-ministerial action, the integration of Indigenous knowledge, and the value of artists in driving positive tipping points for climate action. The event underscored the significance of culture as essential social infrastructure for meaningful system change in the face of climate change.