Please note that for land numbers in Costa Rica you must now add a 2 at the beginning of the telephone number and an 8 if it is a mobile phone. Therefore, the numbers for the Earth Charter International Secretariat and the Earth Charter Center of Education for Sustainable Development at UPEACE have changed to the following:
Transformative Teaching and Learning with the Earth Charter
The Earth Charter is a universal expression of ethical principles to foster sustainable development.
The Earth Charter Initiative is the global network that embraces, uses and integrates the Earth Charter principles.