The enactment of environmental laws sparks debates among various actors who form opposing coalitions to impose their visions. Using Argentina as a case study, we conducted a comparative analysis of the approval of two national environmental laws during a period of high commodity prices (2000-2013), during which the exploitation of resources would be constrained by these laws: the Native Forests Act (2007) and the Glaciers Act (2010). We seek to answer: what factors favor the enactment of environmental policies that limit the advance of various productive activities in a commodity boom context? We argue that the success of a coalition seeking to break the prevailing status quo depends on the coordination of two strategies: public salience and parliamentary negotiation.