ENO - Schools and communities for sustainable development

Environment Online (ENO) is a global network of schools and communities for sustainable development. Environmental themes are studied throughout the school year and campaigns are arranged simultaneously around the world. Over 10 000 schools from 150 countries have taken part in ENO activities, and have made concrete actions for the environment such as having planted 30 million trees so far.

In addition to schools, cities and municipalities have joined ENO Green Cities Network to support ENO schools.

ENO activities are coordinated and maintained by the ENO Schoolnet Association which is based in Joensuu, Finland. ENO has received many national and international recognitions.


ENO is a voluntary network. Our country coordinators in about 100 countries share information about ENO and report their national activities to the ENO Schoolnet Association. Check out the country coordinator near you from the map on the front page.

ENO and the United Nations

ENO activities are guided by and aligned with the United Nations Sustainable Development Goals.

ENO Topics And Activities


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.


Technology: Envirate

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.



We believe in art as a way of expressing creativity and raising sustainable awareness. Contests on selected themes, such as ENO Art Bee Contest 2018, are organised during the year. We use recycled materials for all creative work.

We are global!

ENO Programme on the map