SIGNALInfrastructure Software·Jun 12, 2026, 11:32 AMSignal75Medium term

Microsoft to purchase 36,920 tons of carbon removal credits from ERW firm Alt Carbon in Darjeeling, India

Source: DataCenter Dynamics

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Microsoft to purchase 36,920 tons of carbon removal credits from ERW firm Alt Carbon in Darjeeling, India

Generated by Alt's Darjeeling Revival Project

Why this matters
Why now

The increasing pressure on companies, especially large tech firms, to achieve net-zero carbon targets is driving significant investment in carbon removal, particularly ERW technologies which are gaining commercial traction.

Why it’s important

This massive purchase by Microsoft highlights the growing corporate demand for scalable and verifiable carbon removal solutions, accelerating the market for emerging environmental technologies and signalling a shift in corporate sustainability strategies.

What changes

The market for engineered carbon removal solutions receives a significant boost in legitimacy and investment, potentially accelerating the development and deployment of such technologies globally.

Winners
  • · Alt Carbon
  • · Enhanced Rock Weathering (ERW) industry
  • · Carbon removal technology providers
  • · Microsoft (ESG standing)
Losers
  • · High-emission industries (reputational)
  • · Traditional offset providers (if ERW scales faster)
Second-order effects
Direct

Microsoft integrates these carbon credits into its net-zero reporting, reducing its reported carbon footprint.

Second

Increased investment and research in ERW and similar carbon removal technologies are spurred by this large-scale corporate acquisition.

Third

The commercial viability and scalability of ERW become more established, potentially influencing government policy and further accelerating market growth for carbon removal.

Editorial confidence: 90 / 100 · Structural impact: 55 / 100
Original report

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