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!


Fri 20 SEP

ENO Tree Planting Day

A traditional tree planting day for peace in ENO since 2004.  The day is known also an international day for peace. We are celebrating 15 years of tree planting in ENO now!

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 21 2020

International Day of Forests

The United Nations International Day of Forests has been celebrated since 2013 on 21 March.  The theme for 2020 is Forest and Biodiversity –  Too Precious to Lose. ENO calls its network to celebrate forests in their schools, communities and cities. Read more here and join.

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.