London Climate Action Week 2026

Running June 20–28, 2026, London Climate Action Week convenes the capital's business, government, civil society, and community leaders around a coordinated series of events and initiatives designed to accelerate net-zero transition and climate resilience across the city's economy and communities. The week-long festival showcases London's existing climate action programs, demonstrates innovative solutions in renewable energy, green infrastructure, circular economy, sustainable transport, and green jobs, and facilitates strategic conversations between municipal government, private enterprises, financial institutions, and grassroots organizations. Programming addresses critical adaptation strategies for urban flood resilience, air quality improvement, circular procurement in public institutions, green skills development, workforce transition support, and just transition frameworks ensuring equitable benefits. The event positions London as a leading exemplar of metropolitan decarbonization while advancing climate equity, energy affordability, and environmental justice across diverse London communities.