“…For long, educational efforts are increasingly being seen as means for increasing individuals' environmental knowledge and capacity to work towards addressing environmental problems, with schools seen as important media through which such knowledge can be acquired [9][10][11][12][13][14][15][16]. Accordingly, large volume of published research information is available on environmental knowledge of school students for many areas of the world such as USA [17][18][19][20][21][22] Lebanon [23], Netherlands [24] Malaysia [25], Israel [26,27], Taiwan [28], Canada [29], Turkey [30][31][32][33], Greece [34][35][36][37][38], Australia [39] China [40] Cross-country (China, USA, Switzerland and England) study [41] and Jordan [42]. Similarly, large volume of research works have now been completed assessing the effects of different variables on variations in levels of environmental knowledge of students and teachers in school systems in many countries [11, 43, 44, Sieg et al, 2010;[45-60] In Nigeria, the role of EE in achieving sustainable development has for long been appreciated.…”