What’s On For London Climate Action Week 2026?

Now in its eighth year, London Climate Action Week has grown into Europe’s largest independent climate change event. Hosted by climate think tank E3G in partnership with the Mayor of London, it’s all about connecting world-leading climate professionals with communities on the ground, all uniting to find practical solutions to the climate crisis.

Wondering how to get involved? Here’s what’s on in 2026.

London Climate Action Week 2026: What’s On?

Nature in the City

What better way to mark the summer solstice than with a rooftop gathering of climate-led conversation? Head to Sea Containers London on the Thames riverside for a positive afternoon designed to bring together voices from conservation, regenerative farming and tourism. Curated by sustainable luxury expert Juliet Kinsman, the line-up includes comedian and environmental economist Dr Matt Winning, and head of the UK National Wildlife Crime Unit Kevin Lacks-Kelly, who will set out why wildlife crime is a frontline climate issue. They’ll be joined by names from places like The Datai Pledge, The Bull Inn, Sapling Spirits and LORE Group, who will cover topics including regenerative food and drink, and nature-based solutions. All funds go towards the charity Farms for City Children, which C&TH has previously worked to support.

Details: £20pp, 21 June 2026. eventbrite.co.uk

Fleet Street Climate Quarter Festival

London’s historic newsroom is now a thriving business district playing a key role in the City’s green transformation. If you’re looking for bold, solution-led conversations surrounding finance, property, policy, sustainability and the creative industries this London Climate Action Week, Fleet Street is the place to be. Events will take place at both contemporary and long-standing venues throughout the area, with highlights this year include a talk on the business case for sustainability, looking at how the climate is increasingly shaping investment decisions. The festival will also see the launch of a Climate Connectors Commitment Charter, designed to turn discussions from the festival into pledges, accountability and action.

Details: 22–25 June 2026. fleetstreetquarter.co.uk

Culture Night

Climate events often feel scary and urgent, but they can be fun and inspiring too. Culture Night, for instance, is a lively evening of music and conversation set against the backdrop of Cody Dock in Canning Town which aims to spark joy and creativity among the sector. Expect interactive workshops led by Oxfam and the Chilli Fountain, alongside talks and performances from key figures like Tanya Haldipur of the Youth Climate Collaborative – ending with a DJ set and dancing.

Details: 21 June 2026, 5–9.30pm. luma.com

(c)Konstantino Douloudis, Unsplash

Resilient Roots: Soil & Climate Walk

Join a free, guided walk to learn how wild living soils support biodiverse and climate-resilient parks, led by Gemma Hindi from the Help Nature Thrive team. You’ll discover interesting facts about species you walk past every day, plus hear about the challenges facing our parks today.

Details: Free but you must reserve a spot, 27 June and 4 July 2026. eventbrite.co.uk

Earthfest

Earthfest is a four-day sustainability festival taking place within London Climate Action Week. Held at King’s Cross, it brings together over 100 industry leaders, athletes and policy makers to discuss how sport can drive a more sustainable planet. Expect panel discussions from speakers such as former Paralympic swimmer Ellie Simmonds and president of World Athletics, Lord Sebastian Coe – with funds going towards The London Clean Air initiative. 

Details: 24–27 June 2026. earthfest.world

London Climate Action Night

The Natural History Museum is hosting a free evening on nature positivity, which explores how cities like London are tackling the climate crisis. Topics to be discussed include climate anxiety, looking at projects working to build resilience among young people, and dealing with increasing urban heat – with experts exploring how city dwellers can lessen the impact. Guests can also stop by the Nature Discovery Garden to learn why pond habitats are so important, visit pop-up science stations, and prompt conversations with fellow climate lovers at the Tree of Reflection.

Details: 24 June 2026, 6.30 – 9.30pm. nhm.ac.uk