In Forces of Production, Climate Change and Canadian Fossil Capitalism, Nicolas Graham reinterprets the concept of forces of production from an ecological standpoint and in the context of the deepening climate crisis. He argues that ecological knowledge itself, as well as associated developments in renewable energy technology and green infrastructure, represent advancements in productive forces. However, such green productive forces are fettered by capitalist relations of production, including the power of carbon capital. In addition to a conceptual and theoretical reinterpretation, case studies focusing on Canadian fossil capitalism provide a concrete-complex analysis of the deepening of fossil-fuelled productive forces and the process of fettering in both renewable energies and in the development and application of ecological knowledge.