Useful Links
- http://europa.eu.int/comm/environment/youth/index_el.html
- http://dim-rizou.pel.sch.gr/perivallon/
- http://europa.eu.int
- http://www.thessalonikicity.gr
- http://www.cityofnewpsychico.gr
- http://www.prasino.gr
- http://gym-kavas.ima.sch.gr
- http://www.asda.gr
- http://www.planetsave.com
- http://www.unep.org
- http://www.minenv.gr/5/55/site/pre-2002.htm