Microsoft’s carbon removal plans aren’t dead after all

Source: TechCrunch

Deal Overview

Microsoft is purchasing 650,000 metric tons of carbon removal credits from startup BioCirc, the company announced today.

The purchase agreement, signed in May, generates credits from five BioCirc biogas projects. The plants process biomass waste—often agricultural—using industrial bioreactors to produce methane and carbon dioxide. BioCirc captures the CO₂ and stores it in an offshore underground reservoir, while the methane is burned for power.

Industry Context

• Market Influence: Microsoft accounts for more than 90 % of the carbon‑removal credit market, meaning its procurement decisions can determine the survival of many startups in the space.
• Recent Reports: Earlier reports suggested Microsoft was pausing its carbon‑removal deals, but the company has repeatedly denied a full pause. Melanie Nakagawa, Microsoft’s chief sustainability officer, stated, “Our carbon removal program has not ended… we may adjust the pace or volume of our carbon removal procurement as we continue to refine our approach toward sustainability goals.”
• Previous Activity: Last year Microsoft signed several multi‑million‑ton deals for carbon removal credits, and the reported pause had set off alarm bells across the nascent industry.

Microsoft’s Sustainability Challenges

• AI‑Driven Energy Demand: Microsoft’s push into AI has increased its data‑center power needs. To supply electricity in Texas, the company is working with Chevron and Engine No. 1 on a natural‑gas power plant that could eventually generate 5 GW—potentially dwarfing the emissions offset provided by the BioCirc deal.
• Renewable Matching Goal: Internally, employees have debated whether to abandon the goal of matching zero‑emissions electricity on an hourly basis. Currently, Microsoft matches on an annual basis, giving it flexibility to use more natural gas at night but complicating verification of its clean‑energy claims.
• 2030 Carbon‑Negative Target: If Microsoft continues to rely on fossil‑fuel power plants, it will need to scale up carbon‑removal purchases to meet its target of removing more greenhouse gases than it emits by 2030.

Implications

The new BioCirc agreement suggests Microsoft is recalibrating rather than abandoning its carbon‑removal program. The industry will be watching closely to see how the company balances growing AI‑related energy consumption with its climate commitments.