Global oceans absorb about 25% of the carbon dioxide released into the atmosphere when fossil fuels are burned. Electricity-eating bacteria known as photoferrotrophs could provide a boost to this essential process, according to new research from Washington University in St. Louis.Scientists led by Arpita Bose, assistant professor of biology in Arts & Sciences, found that bacteria found in brackish sediments can “eat” electricity and, in the process, absorb and lock away climate-warming carbon dioxide.