Reference documents
- Human environment declaration (Stockholm declaration)
- Tblisi declaration
- Rio declaration
- Thessaloniki Declaration
- Johannesburg Declaration on Suistainable development
- International Decade of Education for Sustainable Development
- UNECE strategy for education for sustainable development
- Fiuggi Charta 1997
- IN.F.E.A Guidelinees
- Guidelinees for environmental education proposed by Italian Ministry of Environment