'A footprint means pressing down and global means world, so 'global footprint' means pressing down on the world and we don't want to press too hard' (child's definition of a Global Footprint)
what is Global Learning? CoreKnowledge Key Skills Values and Attitudes what is sustainability? what about climate change?
what about climate change?

Classroom Activities

Exciting and thought provoking ideas for incorporating global learning into your curriculum.The activities are designed to meet curriculum learning objectives and some key concepts of global learning such as Diversity, Human Rights, Interdependence, Peace and Conflict and Sustainability.

You may be interested in looking at the 'Concept of the footprint' and 'What is the global footprint? 
Concept of the footprint introduction
Curriculum: Geography     Target: Mid-upper primary
What is the global footprint?
Curriculum: Geography, Sustainable Development     Target: Upper Primary