Great Big Green Week is the UK’s biggest celebration of community action to tackle climate change and protect nature.
During the week, communities, schools, businesses, churches, mosques and more join together in a wave of support for action to protect the planet.
Taking action to swap together for good shows our support for a safer, greener, fairer future.
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 2025Thousands of events take place under the theme of ‘Let’s swap together for good’.
We’ve seen tours of local wind farms, nature restoration afternoons, mini festivals that celebrate the community and so much more. You might consider events that swap skills or items, or perhaps a repair café.
Events are hosted by teachers, bus drivers, sport clubs, artists, community groups, places of worship, libraries, builders. People like you who care about climate change.
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.
We’re busy preparing all the resources and support to help you get involved - sign up to our mailing list to be the first to know when these are available. In the meantime, why not get inspired by previous community events, or see what else you can do in the lead up to Great Big Green Week 2026?
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.