London Climate Action Week (LCAW) 2026 brought together an estimated 50,000 participants across 1,300 events under the theme Cooperation in a Fragmented World. Taking place against a backdrop of geopolitical tension, energy security concerns and strained public finances, the week offered a clear counterpoint to the idea that climate action is stalling. The tone was pragmatic: less about new commitments, and more about how climate goals can be delivered in the real economy.
Article last updated 27 November 2025.
