LCAW 2025 is Europe’s largest climate-focused urban festival, bringing together over 45,000 participants annually. Established by E3G and supported by the Mayor of London, LCAW positions London as a global hub for accelerating practical solutions to climate change. It convenes leaders from finance, policy, business, civil society, and science to push forward collective action toward net zero and climate resilience.

The week features more than 300 events including flagship gatherings like the Climate Innovation Forum, Net Zero Delivery Summit, and Resilience Finance Summit. These events explore pressing themes such as climate governance, finance, nature-based solutions, and diplomacy. Alongside high-level discussions, LCAW engages local communities, youth, and educational institutions to ensure inclusive participation in shaping the climate future.