The present report investigates the early, ongoing, and often surprising role of the fossil fuel industry in developing, patenting, and promoting key geoengineering technologies. It examines how the most heavily promoted strategies for carbon dioxide removal and solar radiation modification depend on the continued production and combustion of carbonintensive fuels for their viability. It analyzes how the hypothetical promise of future geoengineering is already being used by major fossil fuel producers to justify the continued production and use of oil, gas, and coal for decades to come. It exposes the stark contrast between the emerging narrative that geoengineering is a morally necessary adjunct to dramatic climate action, and the commercial arguments of key proponents that geoengineering is simply a way of avoiding or reducing the need for true systemic change, even as converging science and technologies demonstrate that shift is both urgently needed and increasingly feasible. Finally, it highlights the growing incoherence of advocating for reliance on speculative and risky geoengineering technologies in the face of mounting evidence that addressing the climate crisis is less about technology than about political will.