Benjamin Parr examined the climate policy discourses of the government and fossil fuel industry in Australia, and their relationship to climate diplomacy, during the period 2006-2009. The thesis argued that the shared government-industry discourse about protecting Australia’s industrial competitiveness has had a more decisive influence in shaping and legitimating Australian climate policy than the direct lobbying tactics of the fossil fuel industry, aka ‘the greenhouse mafia’; while the different foreign policy traditions of Australia’s major political parties - as alliance-focused versus internationalist - help to explain variation in domestic climate policy and climate diplomacy.