300 +

In person and virtual events

45000 +

Attendees

London Climate Action Week harnesses the unique power of London for global and local climate action.

It mobilises London’s unparalleled ecosystem of climate and non-climate organisations to accelerate global climate action and supports action in London to ensure it acts as a global climate leader.   

LCAW 2025 will take place 21-29 June 2025. 

Now in its 7th year, it is the largest city-wide climate festival in Europe, attracting over 45,000 people annually.  

LCAW provides a brand and platform under which hundreds of organisations, communities and individuals host their events, creating a large and vibrant programme of climate-focused activities.   

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