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Google Signs Biggest Rice-Methane Carbon Credit Deal With Mitti Labs

Google agreed to buy 1 million carbon credits from Indian climate-tech startup Mitti Labs through 2030, covering rice farms in Karnataka, Andhra Pradesh and Telangana.

Why it matters

The multiyear purchase gives the startup a committed corporate buyer and may provide the revenue visibility needed to expand farmer operations, monitoring and verification capacity.

Google signs its biggest rice-methane carbon credit deal with Indian startup Mitti Labs

TechCrunch

What changed

According to TechCrunch’s reporting, Google has agreed to buy 1 million carbon credits from Indian climate-tech startup Mitti Labs through 2030. The projects will cover rice farms across Karnataka, Andhra Pradesh and Telangana, reaching about 100,000 hectares at peak delivery; financial terms were not disclosed.

The farmers will be paid to keep fields flooded for shorter periods. Mitti Labs says that can cut methane emissions by about 50% and irrigation-water use by about 40% without reducing yields. The credits may be issued through Gold Standard or Isometric and independently verified.

Why This Matters

The interesting part is not simply that Google is buying offsets. It is that a corporate climate budget is being tied to a very practical farm decision: when to drain a rice field.

That gives Mitti Labs something startups rarely get from a sustainability pilot: a committed buyer large enough to support expansion, monitoring and farmer incentives. If the money reaches farms through workable local arrangements, more growers could adopt shorter flooding periods over the next several growing seasons. Water managers could also see lower irrigation demand across enrolled acreage.

But this is where the fine print matters. Google’s emissions rose 18% in 2025, to about 14.5 million metric tons of carbon dioxide equivalent, even as it pursues net zero by 2030. The purchase therefore adds a potentially useful methane-reduction project, but its climate value will depend on how many credits are actually issued, how strong the verification is and how Google treats them in its accounting.

Our outlook (informed speculation): the likeliest result is a gradual expansion that delivers a meaningful but unproven share of the contracted credits. The real test will be whether Mitti Labs can turn satellite monitoring and field measurements into reliable farm operations at scale.

The last time this happened

Our earlier reporting on Vietnam’s “1 Must, 5 Reductions” rice programme described a similar approach: alternate wetting and drying, farmer training, collective groups and better water management.

The structure was similar, but the engine was different. Vietnam’s effort was a public agricultural programme with broader changes to seeds, fertiliser, pesticides and post-harvest practices. Google’s deal is a private purchase of methane credits from an Indian startup.

The World Bank later reported that Vietnam’s programme covered more than 184,000 hectares, with lower input use, average earnings gains of about 30% and roughly 1.5 million tons of annual CO2e reductions across 185,000 hectares. Vietnam then pledged to expand the approach to another 1 million hectares. That precedent suggests the technology can scale when training, infrastructure, market support and measurement arrive together. It does not guarantee the Indian projects will reproduce those results.

The historical parallel

The lesson from Vietnam is simple: a water-saving technique becomes durable when farmers receive more than instructions. They need incentives, reliable local systems and a buyer for the outcome.

Mitti Labs has the buyer. The open question is whether the Indian projects develop the rest of that support chain. Smallholder farms are not a single machine that can be switched on from a corporate headquarters.

How the effects could spread

Google’s commitment may give Mitti Labs predictable financing to enrol farms, expand field operations and satisfy certification requirements. That could improve its bargaining position with future corporate buyers and make agricultural methane projects easier to finance.

The next link is farmers. If payments or operational support arrive reliably, adoption may rise and irrigation demand may fall. If financial terms leave too little for farmer incentives, or local irrigation conditions make shorter flooding difficult, the purchase will produce fewer farms and fewer usable credits than planned.

Competing carbon-project developers may also face a higher bar. A large buyer has now signalled interest in agricultural methane credits, but developers will need credible measurement, independent verification and the ability to operate across many small plots.

Impact assessment

Mitti Labs is the clearest near-term winner. A multiyear buyer can help it expand capacity and demonstrate that its GeoAI system works in a commercial project.

Participating farmers could gain new payments and lower irrigation needs, but their position is mixed. Those benefits depend on pass-through arrangements, local water systems and whether shorter flooding periods fit ordinary farm operations without affecting yields.

Google’s position is also mixed. The deal broadens its climate portfolio, but rising emissions and undisclosed accounting treatment leave uncertainty over how much it changes the company’s wider net-zero challenge.

The broader consequence is operational. If the project works, carbon finance could help move rice-methane reduction from demonstration projects into a repeatable procurement category. If it struggles, buyers may become more cautious about projects whose promised reductions depend on thousands of individual farm decisions.

Scenarios

Most likely

If certification proceeds and Mitti Labs converts its monitoring system into enrolled farms, the startup expands gradually and delivers a meaningful but not yet proven share of the credits between 2026 and 2030. Google gains a verified agricultural methane project, while farmer benefits vary by location and payment arrangements.

Upside

If payments reach farmers reliably, yields remain stable and the operational support seen in Vietnam is available, enrolment approaches the reported 100,000-hectare peak. Verified methane and water reductions make rice-methane credits more attractive to other corporate buyers, strengthening Mitti Labs and creating a durable incentive for Indian farmers to adopt water-saving cultivation.

Downside

If local irrigation conditions limit adoption, financing does not support sufficient incentives or certification approves fewer credits than expected, issuance falls materially below 1 million. Mitti Labs gains less scale, farmers receive limited support and Google gets less usable climate impact from the purchase.

What to watch next

  • Credits issued under Gold Standard or Isometric after independent verification.
  • Enrolled acreage moving toward roughly 100,000 hectares across the three states.
  • Evidence that farmers adopt shorter flooding periods without yield losses.
  • Reported reductions in irrigation use and methane emissions.
  • Google’s later environmental reporting on the credits and their treatment in its 2030 net-zero strategy.
Sources (4)
  1. TechCrunchGoogle signs its biggest rice-methane carbon credit deal with Indian startup Mitti Labs
  2. blogs.worldbank.orgA slogan for sustainable agriculture: 'Mot Phai, Nam Giam' rice production
  3. worldbank.orgGreening Viet Nam’s Rice Bowl: A Mekong Delta Success Story
  4. worldbank.orgTransition to Low-Carbon Rice Will Help Vietnam Meet Its Emission Target While Maintaining Competitiveness Edge

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