Heirloom and Microsoft sign one of the largest permanent CO2 removal deals to-date Microsoft has signed a long term contract to purchase up to 315,000 metric tons of CO2 removal over a multi-year period from Heirloom – a Direct Air Capture company that harnesses the natural properties of limestone to remove CO2 from the atmosphere – in one of the largest carbon dioxide removal deals to-date.
Microsoft agreed to fund a carbon capture technology that uses the natural properties of limestone to take carbon dioxide out of the atmosphere, the startup firm Heirloom Carbon announced Thursday. The tech giant will purchase about $200 million worth of carbon credits — equivalent to 315,000 tons of carbon — over 10 years from Heirloom…