Microsoft Halts Carbon Credit Buys

Microsoft has paused future purchases of carbon removal credits , a move disclosed on April 16, 2026, that could cool momentum in the still-developing carbon removal market. The decision matters because Microsoft has been a prominent early participant in carbon removal, and its buying activity has been closely watched by suppliers and investors.

The pause lands as hundreds of carbon removal startups seek to scale technologies designed to pull planet-warming gases from the atmosphere. Those companies have collectively raised over $5 billion, and many rely on corporate purchases of credits to help finance early deployment and prove demand. With Microsoft stepping back from additional buying for now, the market signal could affect how quickly projects move from pilots to larger commercial operations.

Microsoft’s Chief Sustainability Officer, Melanie Nakagawa, said the company’s carbon removal program has not ended. She described the changes as adjustments tied to refining Microsoft’s sustainability goals, indicating the company is recalibrating rather than exiting. Even so, the decision comes at a time when tech-sector emissions have been rising, linked in part to data center expansion to support artificial intelligence.

The broader voluntary market has not yet delivered the level of demand many developers expected. McKinsey has projected the carbon removal market could reach $1.2 trillion by 2050, but current activity remains below those long-term expectations. Microsoft’s pause adds to concerns that near-term corporate purchasing may be less consistent than suppliers need to plan capacity and financing.

The announcement also arrives amid other setbacks for the sector. The termination of $3.7 billion in U.S. Energy Department awards has removed a major source of anticipated support, and there has been a decline in new carbon capture permit applications. Separately, Climeworks has reduced staff as it adjusted to slower growth expectations, underscoring the pressure on companies operating in a market that is still searching for stable demand and policy backing.

What remains unclear is how long Microsoft’s pause will last and what criteria will guide any restart of purchases. The episode highlights the industry’s dependence on sustained corporate investment and regulatory support, and it reinforces the uncertainty facing suppliers trying to scale in a market where demand has not yet matched projections.