Amidst the proliferation of material technologies developed to solve the problems of planetary climate change and carbon emissions, the technoscientific community increasingly champions a new molecular hero: metal organic frameworks (MOFs). Metal organic frameworks are an emergent generation of material technologies lauded for their capacity to capture and sequester carbon dioxide (CO2) within their porous structures. They are among the most widely researched materials within the fields of climate science, materials science, and various (sub)disciplines of chemistry, heralded for potential applications that include yet exceed carbon capture and sequestration. Their synthesis anticipates infinite configurations of matter and materiality at the molecular scale, with an equally infinite array of applications. This article examines the promise and porosity of MOFs created to capture CO2 and an expanding array of technoscientific actors and interests. (read more...)