Thousands of UK pupils will join children across the world for JUST ONE Tree Day on Friday 17th October 2025 to tackle climate change and biodiversity loss.

From pre-schools to colleges, thousands of pupils will spend a day learning about how to save and restore our planet using the free educational resource packs provided. Every pound raised plants a tree in areas hit hardest by deforestation.
Since launching in 2019, over 240,000 children from 17 countries have taken part, planting more than 380,000 trees in Africa, Asia & South America – restoring vital habitats, supporting local communities and removing carbon dioxide from the atmosphere.
Why JUST ONE Tree Day matters
JUST ONE Tree Day is the flagship event of British not-for-profit JUST ONE Tree, a proud partner of the United Nations Decade on Ecosystem Restoration. The day inspires children and young people to see how their individual actions make a difference in tackling climate change and biodiversity loss.
Schools that sign up receive free curriculum-linked teaching resources for all ages, empowering students to learn about the planet while taking tangible action to protect it.
Want your school to take part? Sign up at www.justonetree.life/schools-sustainability
JUST ONE Tree founder, Amanda Bronkhorst, said: “Many young people struggle with climate anxiety, but JUST ONE Tree Day shows them that small actions when multiplied can have a huge impact. Together, we’ve already planted over 380,000 trees – and we’re just getting started.”
Portsmouth High School in Hampshire said: “Pupils were helped to feel empowered to take control of their futures and to make it greener.”