Google Backs Cleaner Rice Farming
Google has agreed to buy one million carbon credits from Indian startup Mitti Labs by 2030, funding changes to rice farming that could cut methane emissions and water use while testing how corporate climate spending can deliver measurable benefits beyond a company’s own operations.
Why Rice Farming Matters
Rice fields may seem far removed from Google’s data centres, but their contribution to global warming explains the connection. For example, when paddies remain flooded, oxygen levels in the soil fall, creating conditions in which microbes produce methane as they break down organic material.
Periodically draining and reflooding fields interrupts that process, reducing methane production while requiring less irrigation. Known as Alternate Wetting and Drying, or AWD, the technique already has an established research base, with careful management allowing farmers to conserve water without sacrificing their harvest.
For communities facing water shortages, maintaining food production with less irrigation could be as important as reducing emissions. However, farmers need control over water supplies and guidance on when to irrigate, because drying fields too far can put yields at risk.
What Has Google Agreed?
Announced on 10 September, the agreement will support the expansion of changed irrigation practices across approximately 100,000 hectares of smallholder farmland in India. Mitti Labs says the partnership could save 1.5 trillion litres of water by 2030, although that remains a projection rather than an achieved result.
Its website describes a four-year agreement (while its press release says five years), but both specify delivery of one million credits by 2030. Financial terms have not been disclosed.
Google describes it as “the largest publicly announced agreement to date” for purchasing credits from rice-methane reductions. Its announcement also confirms direct payments to participating farmers, connecting the financial incentive with changes in cultivation.
Why Methane Needs Attention
Methane remains in the atmosphere for much less time than carbon dioxide, but has a stronger warming effect over shorter periods, making reductions particularly valuable for limiting near-term warming.
As Mitti Labs co-founder Xavier Laguarta explains, “Reducing methane from rice farming is one of the most powerful levers we have to slow near-term warming.”
Two Figures Given
It’s worth noting here that Google is actually giving two figures for the expected climate benefit because methane has a stronger warming effect in the short term. Measured over 20 years, the benefit is equivalent to avoiding around three million tonnes of carbon dioxide, compared with one million tonnes when measured over 100 years, so these are two ways of describing the same benefit and shouldn’t be added together.
How Can The Savings Be Checked?
To check whether farmers are changing how they irrigate their fields, Mitti Labs combines satellite radar images with observations collected on the ground. This helps it track flooding, soil moisture and crop conditions across thousands of small farms, with its recent US$9.5 million funding round supporting further development of the technology and expansion into more farming areas.
Those observations help show whether the farming practices are being followed, but calculating how much methane has been avoided requires some further checks. For example, Isometric, a carbon-credit certification body with which Mitti Labs is registered, requires projects to monitor water levels and reduces the number of credits they can claim where uncertainty in the estimates could overstate the benefit.
For buyers, this means checking both how the project measures its results and whether the reductions would have happened without its funding, so they can judge whether their money is making a difference.
Does This Address Google’s Own Emissions?
The agreement comes as Google’s expanding infrastructure complicates its climate ambitions. Its 2026 environmental report records approximately 14.5 million tonnes of emissions under its “ambition-based” accounting measure for 2025, an increase of 18 per cent.
It should be noted here that preventing methane from entering the atmosphere doesn’t remove carbon dioxide already released by data centres or construction. Google acknowledges this, saying credits used to counterbalance emissions will either be matched against shorter-lived emissions or replaced with carbon removals when their atmospheric benefit expires.
How Effective Is Offsetting?
Google’s agreement raises a wider question about whether businesses can compensate for their own emissions by paying for reductions elsewhere. Supporters argue that deals like this fund changes to farming that might otherwise struggle to attract investment, while critics warn that offsetting can allow companies to claim climate progress while their own pollution continues to grow. The value therefore depends on whether the promised benefits are delivered and verified, and whether Google continues cutting its own emissions.
What Does This Mean For Your Business?
For businesses considering carbon credits, the agreement shows why the underlying activity deserves as much attention as the number purchased. For example, a credible project should explain how reductions are measured, why funding changes what happens and how participating communities benefit. Promised savings should remain clearly distinguished from verified results.
The broader sustainability opportunity here is to support changes that solve more than one problem. Reducing irrigation demand could help protect agricultural production in water-stressed areas while lowering emissions, giving food businesses and their suppliers reasons to examine farming practices within their own supply chains.
However, external projects should support continued work on a business’s own energy use, purchasing and operations. The strongest approach combines direct reductions with carefully assessed climate funding, then reports both clearly so customers can understand what has improved within the organisation and what its money has helped others achieve.
