The "Ten Tonne Plan" is a greenhouse gas emissions reduction initiative that aimed to reduce school emissions by 10 tonnes (metric tons) in one year. A case study was conducted on the impact of this initiative at a primary school in Western Australia. Research investigated student, staff, parent, and community partner perceptions following participation. Results showed the school achieved its goal through the implementation of a variety of environmental and social actions undertaken by the whole school community. Findings identified strengths and weaknesses of the initiative. The "Ten Tonne Plan" provided a model that is applicable in a variety of school settings.