Even though US President Donald Trump has pulled the United States out of the Paris Agreement, the country remains much closer to hitting the 2020 emission targets pledged by the previous administration of Barack Obama than Canada is of meeting the targets originally proposed by the government of Stephen Harper. The significant difference in emission performance is the result of the very different trajectories of energy-related emissions in the two countries. In the United States, such emissions have fallen steadily over the last decade as natural gas has usurped coal’s once dominant role in the US power sector. North of the border, oil sands emissions continue to be the fastest-growing source of emissions in Canada as emission-intensive in situ oil sands production continues to increase despite unfavourable economics.