
Microsoft (NASDAQ:MSFT) is under pressure to deliver on its ambitious climate pledge, and it’s now placing a massive bet on a startup that literally buries waste to fight carbon pollution. Carbon removal startup Vaulted Deep on July 17 announced a 12-year agreement with the tech giant to permanently eliminate 4.9 million metric tons of carbon dioxide from the atmosphere by 2038.
A runner-up in Elon Musk's Xprize Carbon Removal competition, Vaulted Deep uses human waste, animal manure, and paper sludge to create a carbon-rich slurry that is injected deep into underground rock formations using fracking technology in reverse, TechCrunch reports.