Global warming, overpopulation, overflowing landfills, ozone depletion, acid rain, loss of green space, water pollution and species extinction are all problems that are primarily, if not exclusively, caused by human behaviour. The purpose of this quantitative research was to explore the effects of the Green School Energy Program, the study was designed to test, first, whether environmental attitudes and knowledge on energy conservation of participants changed relative to nonparticipants, and second, whether school children green influenced their parent’s environmental attitudes and knowledge. the study was a post-test pre-test intervention with 2 schools one control school (n= 94) and the experimental school (n=162) with children aged 9 -12 and their parents. The analysis showed there to be a significant relationship among the children and parents attitudes of the green school pre and post intervention. Significance was also evident of the children’s knowledge after the intervention in comparison to the control school. And finally parents of the green school conveyed a positive change in attitudes on energy conservation. The study discusses the possible barriers to change and theories in attempt to explain the effects of education on pro environmental knowledge and attitudes among parents and their children.