Education sits at a pivotal crossroads in the fast-changing terrain of the twenty-first century, confronted with the difficult task of preparing students for a society marked by unparalleled connection, complicated global challenges, and fast technology innovation. Beyond conventional nation-centric approaches to embrace a more whole, globally-oriented perspective, the development of Global Citizenship Education (GCE) and Education for Sustainable Development (ESD) marks a basic paradigm change in educational philosophy and practice. These educational models have become indispensable reactions to the complex network of global issues defining our modern society: climate change, social inequality, economic disparity, cultural conflicts, and the pressing need for sustainable development practices able to guarantee the welfare of present and future generations.