700 +

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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Blog

Showcasing the variety of LCAW events on 23 June

Monday kicks off with the official opening, but as well as high profile events, there is a plethora of different topics on offer.

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Blog

Snapshots from 21-22 June 2025

Looking out for LCAW2025 – on screens, on billboards and in the Media

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Blog

Selections from LCAW community events on 22 June

From beans, walks, art and workshops, head along to a community event today

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Blog

Selections from LCAW community events on 21 June Midsummer’s Day

From midsummer parties and picnics, to chefs and sustainable fashion, head along to a community event today

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Blog

Cities must innovate for whole of society climate action

A new phase for climate action Climate action is entering a new phase. Only 10 years ago there was no universal goal for emissions reductions, or a temperature rise limit. No country had committed to achieving…

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