Great Big Green Week
Great Big Green Week 2025
Great Big Green Week is the UK’s biggest celebration of community action to tackle climate change and protect nature, when local groups come together to organise events aimed at improving sustainability and conserving the environment.
We’re taking part in the event for the second year in a row because we’ve set ambitious environmental targets, including to achieve net zero carbon emissions as an organisation by 2030, and we want to encourage others to take positive action on climate change.
This year, Great Big Green Week will return to Welwyn Hatfield on 7 to 15 June.
Activities
The theme of this year’s Great Big Green Week is ‘Let’s swap together for good’, encouraging people to exchange items, skills and more to reduce waste and promote sustainability. Activities throughout the week include river dipping, litter picks, seed planting, clothes swap and much more! Check the event calendar for full details.
Register an activity
If you're interested in hosting an activity, please register your event using our form. This helps us promote it and include it in our event calendar.