What is ENO?

ENO is a global network of schools and communities for sustainable development.


Climate change

We have addressed climate change for nearly 20 years. Over 30 million trees have been planted thanks to our global tree planting campaigns.


Rating the environment

Look, hear and breathe. We use Envirate, a mobile app to rate the environment. Join us in Envirate events throughout the year!



We organise recycling campaigns during the school year. Schools post photos and videos of their projects on ENO Facebook.


Creative ENO ART

We believe in art as a way of expressing creativity and raising sustainable awareness. Contests on selected themes are organised during the year. We use recycled materials for all creative work.

Join us!


OCT - DEC 2019

ENO Art: Light for the Earth!

Make a letter to Earth, prepare a lantern and switch on the Light for the Earth with us,  29 Nov at 6 PM local time around the world.

MAR - MAY 2020

ENO Art: Trees

ENO Art upcycling contest will pay tribute to trees! We have prepared an upcycling contest for students and a photo contest for teachers.

Mar 21 - Nov 21 2020

ENO Treelympics 2020

ENO Treelympics is here again! This tree planting contests and olympiads for forests will be launched 21 March, the intl day for forests.. ENO calls schools with their communites to join ENO Treelympics 2020.

We are global!

ENO Network on the map


Contact us!

Interested in joining us as a school, teacher or city/municipality?  Do not hesitate to contact us! You can email us or contact directly your country coordinator.