Find out more about Great Big Green Week

Credit: Black Girls Hike, Emily Watson and The Climate Coalition

What is Great Big Green Week?

Great Big Green Week is the UK’s biggest celebration of community action to tackle climate change and protect nature.

Thousands of events are hosted across the UK, that demonstrate the brilliant action communities are taking to tackle climate change and restore nature - everything from practical actions such as planting pollinator friendly plants to letter writing workshops, festivals to football matches, seaweed foraging to school assemblies.

Great Big Green Week, organised by The Climate Coalition, is back for 2027 and we’re inviting people like you to host events and activities in your local area from 5th to 13th June. We want to make this the greatest, biggest, greenest week of the year - and we know we can do this with your help.

What's happened so far?

The first Great Big Green Week took place in September 2021, and was the largest event for climate and nature ever seen in the UK, with over 5,000 events taking place up and down the country.

Every year, communities go even bigger and greener to show their commitment to creating a healthier, greener world - and this year was no different! We made history once more as an incredible 1.6 million people got involved in 2026.

Community Gardens across Moray came together to showcase the impact of their work to support food resilience, biodiversity and community-led action, and residents in Dromara saved clothes from landfill. In Birkenhead, communities came together to ‘love where you live’ through repair cafes, gardening projects and more, and film screenings were hosted in Llanfairfechan.

Watch the highlights from 2026

What sort of events take place?

Thousands of events take place each year, that represent what communities care about and are taking action to protect.

We’ve seen tours of local wind farms, nature restoration afternoons, mini festivals that celebrate the community and so much more. The Great Big Green Week is a great chance for your community to build lasting connections, kickstart local activity and really get the attention of local decision makers.

Events are hosted by teachers, sport clubs, artists, community groups, places of worship, libraries – anyone who cares about creating a healthier, fairer, safer future.

For inspiration and ideas of what event you could host, check out community stories page!

How can I get involved?

It’s easy to get involved. You can host events and activities in your area from 5th to 13th June 2026, and help make this the greatest, biggest, greenest week of the year.

However big or small, your event during Great Big Green Week will celebrate how your community is taking action to tackle climate change and protect green spaces, and encourage others to get involved too.

We're busy putting our resources together for 2027, but to help you get started in the meantime, why not hear from some communities who have taken part?

Community stories Ways to take part

Credit: Climate Action Middlesbrough

Together for Good

During Great Big Green Week 2026, 1.6 million people from across the UK took part, taking action together, for good.

Our theme this year, Together for Good, reflected a simple truth: when people come together in their communities, they create real, practical benefits - for local places, for nature, for climate and for our shared future. From small, everyday actions to bigger community events, Great Big Green Week makes that collective action visible.

The more action that happens locally, the bigger the national impact. Great Big Green Week clearly shows that these aren’t isolated acts; they’re part of a growing movement of collective action for climate and nature.