The impact of Global Citizenship Education in the sustainable development of a nation and the entire globe cannot be quantified. Global Citizenship Education has been identified by many developed nations and international organizations as one of the most effective strategies to provide solutions to the 21st century's political, social and economic challenges that have been plaguing many nations of the world, most
especially the developing countries. Unlike National Citizenship Education whose benefits are minimal and limited to the individual and her nation, the advantages accrued to Global Citizenship Education transcends international boundaries and thus prepares an individual into being a global citizen rather than the usual national citizen. In spite of these high-flying benefits, most developing nations, of which Nigeria is one, are still far from adopting the strategy. They hold on to the National Citizenship Education. This paper attempts to x-ray the curriculum of Global Citizenship –its
meaning, origin, goals, contents, teaching-learning strategies and the skills needed for its effective implementation. A review of the existing literatures shows that Nigeria like many other countries of Africa, however, are yet to key into the programme. The study thus looks into the challenges that confront the implementation of the programme and how to combat the challenges. It highlights the benefits Nigeria will
gain if it fully adopts the programme and proffer suggestions to guide the proper implementation of the programme