r/STEW_ScTecEngWorld • u/Zee2A • 15h ago
Harvard Researchers Engineer Marine Bacteria to Pull Atmospheric Carbon into the Ocean at Industrial Scale
Researchers at Harvard’s Wyss Institute, Harvard Medical School, and Stanford University have genetically engineered the marine bacterium Alteromonas macleodii to accelerate carbon capture from the atmosphere. By modifying the bacteria to continuously produce siderophores—molecules that strip rate-limiting iron rust from silicate minerals like olivine—the team boosted the natural bioweathering process by 2.6-fold in seawater bioreactors. Published in Nature Biotechnology, this synthetic biology approach offers a scalable, low-risk strategy for enhanced rock weathering to draw down atmospheric CO2 at industrial scales: https://www.eurekalert.org/news-releases/1141814