Navius Research has quantified Canada’s most promising options to reduce greenhouse gas emissions using a marginal abatement cost curve. Cost curves are a tool for visualizing the potential of low carbon technologies, fuels and actions and can help direct policy efforts towards those that reduce emissions at the lowest cost. This cost curve reveals that the most economically efficient path to reducing Canada’s emissions in 2030 involves a diversity of abatement options. It also illustrates how the importance of these different options varies depending on the desired level of abatement.