Microsoft’s new 10-year deal with Canadian startup Arca harnesses innovative mineralisation technology, marking a major step in its quest for carbon negativity and highlighting the growing role of natural solutions in corporate climate strategies.
Microsoft’s recent signing of a 10-year carbon removal agreement with Canadian startup Arca marks a significant step in the tech giant’s ambitious plan to become carbon negative by 2030. This long-term partnership, announced shortly before Microsoft disclosed its strong fiscal first-quarter 2026 financial results, leverages Arca’s innovative natural mineralization technology that transforms mine waste into stable carbon storage, contributing to durable and scalable carbon removal.
Arca’s process focuses on capturing carbon dioxide by reacting it with magnesium-rich mine tailings—byproducts from mining operations involving metals like nickel, cobalt, and platinum. This reaction results in the formation of solid carbonates capable of storing carbon permanently, potentially for thousands of years. The technology accelerates a natural mineralization process, facilitating mining companies’ ability to reduce emissions and enhance their environmental performance. Paul Needham, Arca’s CEO, framed the Microsoft deal as a validation of industrial mineralization as a viable, scalable pathway for durable carbon removal, providing essential stability and resources for expansion.
Microsoft’s approach to carbon negativity involves combining investments in renewable and clean energy with durable carbon removal projects. Since announcing its carbon negative pledge in 2020, Microsoft has aggressively contracted with multiple carbon removal firms employing diverse technologies, such as direct air capture, biomass-based methods, and ocean sequestration. Despite a 22% reduction in Scope 1 and 2 emissions by 2024, Microsoft acknowledges that over 95% of its carbon footprint resides in Scope 3 emissions, stemming from supply chains and product use. The company’s integration of projects like Arca’s underscores a broader climate strategy focused not just on emissions reduction, but on removing historical carbon from the atmosphere in a permanent manner.
Microsoft’s first-quarter fiscal 2026 results were robust, with revenue reaching $77.7 billion—an 18% increase year-over-year—and net income up 12% to $27.7 billion. Cloud revenue, particularly from Azure and related services, surged 26% to $49.1 billion. Yet, despite these gains, Microsoft shares dropped approximately 3% post-earnings, reflecting investor caution regarding escalated capital expenditures on data centres, AI infrastructure, and the reported $3.1 billion impact related to its OpenAI investments. This caution points to concerns over margins and capacity constraints amid rising cloud demand, underscoring a tension between growth investments and profit optimisation.
The Arca deal is part of a broader movement within tech companies to secure reliable, permanent carbon removal solutions aligned with their sustainability commitments. For instance, Microsoft has forged other significant partnerships, including a 25-year agreement with Chestnut Carbon to acquire over seven million tons of nature-based carbon removal credits in U.S. projects, and a contract with Occidental Petroleum’s 1PointFive unit targeting carbon capture through their Texas-based STRATOS facility. Moreover, the company has aligned with startups like CO280, which harnesses carbon capture integrated with pulp and paper mills, further diversifying removal approaches.
These partnerships reflect growing corporate recognition that AI-driven digital expansion, especially in cloud and data centre operations, entails substantial energy consumption. Global data centre electricity use stood at approximately 415 terawatt-hours in 2024 and is projected to more than double by 2030, partly driven by AI workloads. To mitigate these climate impacts, Microsoft invests in clean energy sources—including nuclear, wind, solar, geothermal—and is exploring advanced options like small modular reactors for future data centres. The Arca agreement complements these efforts by providing a mechanism to offset residual emissions through permanent carbon sequestration.
The carbon removal industry itself is burgeoning but remains in its infancy relative to the scale required to meet net-zero targets. Current verified removal amounts worldwide hover around five million tons annually, yet experts estimate that by 2030, one billion tonnes per year will be necessary globally. Arca’s scalable technology, utilising abundant mining waste rather than new raw materials, offers promise for significant growth. Backed by Microsoft’s financial commitment, Arca plans to expand operations across North America and improve carbon measurement and verification—a critical factor for market trust and corporate reporting compliance.
Government and industry leaders have acknowledged the potential economic and environmental impacts of such carbon removal innovations. Canadian officials highlight how companies like Arca position the country as a leader in clean mining and climate innovation, creating jobs and fostering sustainable growth. This aligns with similar sentiments in the U.S., where large-scale projects supported by Microsoft, such as the $800 million bioenergy carbon capture initiative at Louisiana’s Port of Greater Baton Rouge in partnership with AtmosClear, are unlocking regional economic and environmental benefits, including job creation and investment.
Meanwhile, other tech giants like Google, Meta, and Shopify are also investing heavily in nature-based and technological carbon removal solutions. These include reforestation efforts in the Amazon with startups like Mombak and membership in consortiums dedicated to securing millions of tons of removal credits. These collective initiatives indicate an emerging market for carbon removal credits projected to grow into a $50–100 billion industry by 2030, contingent on supportive policies and sustained corporate demand.
While critics caution that some carbon offset markets may inadvertently allow continued emissions, companies such as Microsoft emphasise stringent standards, transparency, and verified permanence—adhering to frameworks like the Science Based Targets initiative (SBTi). The expanding portfolio of partnerships Microsoft has engineered illustrates a commitment to integrating AI-driven growth with environmental stewardship through innovative, durable climate solutions.
In conclusion, Microsoft’s deal with Arca is emblematic of a strategic shift among multinational corporations toward securing long-term, scalable carbon removal contracts that backstop emissions reduction efforts. This partnership not only advances Microsoft’s carbon negativity objectives but provides a blueprint for aligning cutting-edge technology with natural processes, fostering a new paradigm where industrial growth and sustainability converge. As AI and cloud infrastructure demands escalate, such synergy between innovation and climate action will be critical to meeting global net-zero ambitions while sustaining competitive business performance.
- https://carboncredits.com/microsoft-seals-10-year-arca-carbon-deal-ahead-of-earnings-beat-and-record-profits-but-stock-drops/ – Please view link – unable to able to access data
- https://www.reuters.com/sustainability/cop/microsoft-signs-large-carbon-removal-deal-backing-atmosclears-louisiana-project-2025-04-15/ – In April 2025, Microsoft entered a significant agreement with AtmosClear to support the world’s largest permanent carbon removal project in Louisiana. This initiative aims to capture and store 6.75 million metric tons of CO₂ over 15 years using bioenergy with carbon capture and storage (BECCS) technology. The project, located at the Port of Greater Baton Rouge, will convert materials like sugarcane bagasse and forest trimmings into energy while sequestering carbon underground. This move aligns with Microsoft’s goal to become carbon negative by 2030, despite its greenhouse gas emissions increasing by 29.1% since 2020 due to rising AI-related energy demand. The project is expected to generate over $800 million in investment, create 600 construction and 75 permanent jobs, and position Louisiana as a leader in carbon management research. However, the project’s future may be affected if the 45Q federal tax credit—instrumental to its financing—is repealed or reduced during ongoing budget negotiations under the Trump administration. Louisiana officials are actively lobbying to preserve support for carbon removal initiatives in the state, including a planned Direct Air Capture hub. Plant construction is set to begin in 2026, with operations starting in 2029.
- https://www.reuters.com/sustainability/occidentals-1pointfive-sell-carbon-credits-microsoft-2024-07-09/ – In July 2024, Occidental Petroleum’s carbon capture unit, 1PointFive, entered into an agreement to sell 500,000 metric tons of carbon dioxide removal (CDR) credits to Microsoft over six years. This deal supports Microsoft’s objective to achieve carbon negativity by 2030. The credits for Microsoft will come from 1PointFive’s STRATOS facility in Texas, which is being constructed to capture up to 500,000 metric tons of CO₂ annually once it is fully operational. This partnership underscores the growing trend of major corporations investing in carbon capture technologies to offset their emissions and meet sustainability goals.
- https://www.reuters.com/sustainability/climate-energy/google-buys-carbon-removal-credits-brazil-startup-joining-microsoft-2024-09-19/ – In September 2024, Google agreed to its first purchase of nature-based carbon removal credits from the Brazilian startup Mombak, focusing on replanting native species in the Amazon rainforest. The deal involves Google buying 50,000 metric tons of these credits by 2030. This initiative aligns Google with other major tech firms such as Microsoft, which has a more extensive agreement with Mombak for up to 1.5 million credits. The exact financial terms of Google’s deal were not disclosed, though previous sales by Mombak have priced credits over $50 per ton. This move forms part of a broader trend among tech giants, including Meta and Salesforce, who together formed the Symbiosis Coalition committed to securing up to 20 million tons of nature-based carbon removal credits by 2030. This effort aims to offset corporate greenhouse gas emissions, despite some criticism of offset markets for potentially allowing continued emissions. This announcement coincides with annual Climate Week activities in New York.
- https://www.axios.com/2025/04/11/microsoft-co280-carbon-removal-pulp-paper-mills – In April 2025, Microsoft signed a major carbon removal agreement with startup CO280, aiming to extract 3.7 million tons of CO₂ over 12 years through technology integrated with pulp and paper mills. This initiative marks CO280’s largest deal to date, following a $48 million arrangement with the Frontier consortium for the removal of 224,500 tons between 2028 and 2030. The technology leverages the natural carbon-absorbing ability of trees, with CO280 partnering with a large Gulf Coast pulp and paper mill, though the specific company hasn’t been disclosed. According to CO280’s website, their carbon removal services cost less than $200 per ton. The deal with Microsoft is viewed as a significant step toward embedding carbon capture technologies in traditional industrial sectors. CO280, founded in 2021, is also developing more than a dozen similar projects. While the path to impactful climate mitigation remains complex and uncertain, the agreement represents a key milestone in scaling up carbon removal efforts.
- https://www.axios.com/2025/01/30/microsoft-carbon-removal-removal-credits-chestnut – In January 2025, Microsoft entered a significant 25-year agreement with Chestnut Carbon, a nature-based carbon removal company, to acquire over seven million tons of carbon removal credits from projects in Arkansas, Texas, and Louisiana. This deal is one of the largest U.S. afforestation, reforestation, and revegetation (ARR) projects to date and constitutes Microsoft’s second-largest carbon dioxide removal commitment. As companies like Microsoft continue to enhance energy-intensive AI capabilities, they are simultaneously striving to fulfill their environmental commitments. Despite some criticism of nature-based climate solutions regarding accurate carbon measurement, Chestnut CEO Ben Dell asserts that their projects are indeed removing atmospheric carbon. This partnership underscores the growing interest and viability of nature-based solutions as alternatives to more expensive artificial carbon removal methods.
- https://www.microsoft.com/en-us/investor/earnings/FY-2026-Q1/performance – In October 2025, Microsoft reported strong first-quarter fiscal 2026 results, with revenue rising 18% to $77.7 billion, operating income increasing 24% to $38.0 billion, and net income growing 12% to $27.7 billion. The Microsoft Cloud revenue reached $49.1 billion, up 26% year-over-year, driven by Azure and other cloud services. Despite these strong results, Microsoft’s stock fell about 3% after the earnings release, as investors expressed concerns over increased spending on data centers, AI infrastructure, and OpenAI costs. This financial performance highlights Microsoft’s ability to support significant climate and energy projects, such as the Arca deal, demonstrating the company’s commitment to integrating AI growth with long-term sustainability goals.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
9
Notes:
The narrative appears to be original, with no evidence of prior publication. The earliest known publication date is October 31, 2025. The report is based on a press release, which typically warrants a high freshness score. No discrepancies in figures, dates, or quotes were found. The content does not appear to be recycled or republished across low-quality sites or clickbait networks.
Quotes check
Score:
10
Notes:
The quotes from Arca’s CEO, Paul Needham, and other figures are unique to this report, with no prior online matches found. This suggests potentially original or exclusive content.
Source reliability
Score:
6
Notes:
The narrative originates from a single outlet, Carbon Credits, which is not widely recognised. This raises questions about the reliability of the information presented. The report does not cite any reputable organisations or sources, which diminishes its credibility.
Plausability check
Score:
7
Notes:
The claims about Microsoft’s carbon removal agreement with Arca align with Microsoft’s known sustainability goals. However, the lack of coverage by other reputable outlets and the reliance on a single, less-known source raise concerns about the accuracy and completeness of the information. The tone and language used are consistent with corporate communications, but the absence of supporting details from other reputable sources is a notable concern.
Overall assessment
Verdict (FAIL, OPEN, PASS): FAIL
Confidence (LOW, MEDIUM, HIGH): MEDIUM
Summary:
The narrative presents a potentially original report on Microsoft’s carbon removal agreement with Arca. However, the reliance on a single, less-known source without corroboration from reputable outlets raises significant concerns about its credibility and accuracy. The lack of supporting details from other reputable sources and the absence of coverage by widely recognised organisations further diminish the trustworthiness of the information presented.
