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 2026 and we’re inviting people like you to host events and activities in your local area from 6th to 14th June. Our ambition is to have 2 million people taking part, making 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.

Since then, Great Big Green Week has continued to grow. In 2025, an amazing 1.2 million people took part! From Falmouth to Belfast, Jersey to Anglesey, Rugby to Thurso - we saw community action to tackle climate and nature in towns and cities up and down the country.

Watch the highlights from Great Big Green Week 2025

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 our A-Z of event ideas!

How can I get involved?

It’s easy to get involved. You can host events and activities in your area from 6th to 14th June 2026, and help make this the greatest, biggest, greenest week of the year.

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.

To help you get started, why not hear from some communities who have taken part, or check out our resources page for lots of helpful guides.

Community stories Resources Ways to take part

Strength in numbers

We know that you are making brilliant swaps with lasting impact all year round.

But imagine being part of more than 1 million people from communities across the country swapping together for good to protect and restore nature, lessen the impact of climate change and strengthen our communities.

This is the power of Great Big Green Week. By coming together to swap together for good from 6th - 14th June, we will show our politicians and decision makers that together, we care about tackling climate change and protecting nature.

We now need them to step up and play their part.

The solutions already exist: we need to protect and restore nature in the UK and abroad, swap polluting fossil fuels for affordable renewables, and support those hit hardest by climate change around the world. These same solutions will help tackle the cost of living crisis and create a safer, stronger economy.

We need to get back on track to a world that works for everyone.

Credit: Climate Action Middlesbrough

Together for Good

During Great Big Green Week 2026, we expect up to two million people - just like you - from across the UK to come Together for Good.

Our theme this year, Together for Good, reflects 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.