Microsoft revealed an offtake agreement with Vaulted Deep to remove carbon dioxide using the waste management company’s infrastructure. According to the deal, Microsoft will buy 4.9 million metric tons of carbon dioxide removal from Vaulted Deep through 2038.
Shooting Waste Thousands of Feet Underground
Vaulted Deep’s technology captures carbon dioxide by burying organic waste that contains atmospheric CO2 underground. The company’s waste streams include manure, food and agricultural residues, paper sludge, and biosolids.
Using deep well injection, Vaulted Deep pumps the materials thousands of feet underground into geologic formations sealed by impermeable rock. The method reportedly cuts methane emissions, removes carbon, and prevents contaminants such as PFAS from reaching local environments.
18,000 Metric Tons Removed
The company stated that it has removed approximately 18,000 metric tons of carbon dioxide and redirected 69,000 metric tons of organic waste from landfills, surface application, and incineration.
Vaulted Deep began operating its technology in 2008 and initially applied it to organic waste in Los Angeles. For 15 years, it has processed 20% of the city’s biosolids. The company also handles 75% of biosolids in Derby, Kansas.
Isometric-Certified
Isometric, the carbon removal standard and registry, certified the company’s process, confirming that each credit represents a scientifically verified metric ton of permanent carbon removal.
