This paper evaluates the effectiveness of Australian environmental non-government organisations’ (NGO) campaigns on climate change, and examines their influence on climate-related policies in Australia. This is undertaken through analysis of formal submissions to four climate-related policy formulation processes. In Australia, NGOs have undertaken climate change-focused campaigns for over a decade. Some NGO campaigners and ‘external observers’ of the campaigns appear to implicitly link the lack of adequate climate policies in Australia to the failure of NGO campaigns. This interpretation neglects the significant body of literature that exists on advocacy campaign evaluation, including evaluation of policy influences. None of the resulting climate change policies eventually implemented adopted the breadth or specificity of recommendations proposed by the NGOs. Additionally, the NGOs appear to lack a clear and coherent strategy in their presentation of, and campaign leverage from, these submissions. This research clarifies the role of NGOs and other interests in forming public policy on climate change, and makes recommendations on how NGOs may increase their influence.