Given how much carbon dioxide has been released into the atmosphere from fossil fuels, replacing those fuels with clean options like nuclear energy is urgent, but could be likened to shutting the barn door after the proverbial horse has bolted. But what if you could also round up excess CO₂ already in the atmosphere? That’s the goal of direct air capture (DAC) and other so-called negative emission technologies—to capture climate warming CO₂ for use in products or processes or for permanent storage.

The Department of Energy has awarded a grant worth $2.5 million to Constellation and its project partners to investigate the potential benefits of direct air capture (DAC) technology at its Byron nuclear power plant in Illinois. DAC would remove carbon dioxide directly from the atmosphere, a possible next-generation technology to help combat climate change.