There are skeptics. Electrodialysis, which separates the carbon from the panels, uses so much electricity that it produces nearly as much carbon as it removes. Capturing and storing CO2 from the biggest single source coal plants as researchers are working to do, would be far more efficient, says Gary Rochelle, professor of chemical engineering at the University of Texas. “These kinds of projects are a terrible distraction,” he says.
Global Warming Inspires Enterprising Solutions