Mexico State includes the EC in a textbook

Since 2006 the State of Mexico has been using a textbook for secondary education titled “Educación Ambiental para la Sustentabilidad” (Environmental Education for Sustainability) with a complete reference to the Earth Charter. This textbook has been reviewed and is published again this year of 2009 with suggested activities of how to use the Earth Charter in classrooms. Please see the whole document here.