Doñana EC actions EC competences EEC outcomes EEC pedagogical approach Education Education for Environmental Citizenship Education for Environmental Citizenship (EEC) Environmental Citizenship Questionnaire (ECQ) Environmental Education Humanities Schwartz theory of universal values Sustainability Consciousness Questionnaire adaptive curriculum change agents for sustainability connectedness to nature constraints control attitudes critical realism cross-country comparison design-based research education education for environmental citizenship educational impact educational intervention emotional intelligence environmental awareness environmental citizen environmental citizen science environmental citizen science (CS) initiatives