Microsoft purchases 23,602 carbon removal credits from CREW Carbon

Microsoft has signed a long-term agreement to purchase up to 23,602 durable carbon removal units from Brooklyn-based startup CREW Carbon. This transaction diversifies Microsoft's carbon offset portfolio beyond established methods like direct air capture and biochar. CREW Carbon's technology integrates into municipal wastewater treatment plants, using alkaline minerals to convert dissolved carbon dioxide into stable bicarbonate ions for long-term ocean storage. The deal supports Microsoft's goal of becoming carbon negative by 2030 and expands CREW Carbon's committed removal pipeline past $40 million.