First Microsoft, now Google. The world’s biggest tech companies are placing serious bets on biochar — and this week’s numbers are hard to ignore.
Google has signed a multi-year agreement with Commonwealth Sortation LLC, an affiliate of AMP Robotics, to remove 200,000 metric tonnes of CO₂e via biochar by 2030. This is one of Google’s largest carbon removal purchases to date, and it comes just days after Microsoft’s landmark 1 million-tonne biochar deal with Liferaft — the biggest in US history.
What Makes This Deal Different
Most biochar projects start with agricultural or forestry residues as feedstock. The Google/AMP Robotics project does something unusual: it uses AI-powered sorting technology to process municipal solid waste — the stuff people actually throw out — and converts suitable organic material into biochar rather than sending it to landfill.
The Virginia-based project is described as the largest waste-to-biochar operation of its kind. AMP Robotics is already known for using computer vision and robotics to automate recycling sorting. Here, that same AI sorting capability is being applied to identify and divert organic materials from the waste stream, which would otherwise decompose and release methane — a potent greenhouse gas with ~80x the warming potential of CO₂ over 20 years.
That double benefit — avoided methane emissions plus long-term carbon storage in biochar — makes the climate math more compelling than many single-pathway CDR approaches.
The Demand Signal
What’s notable isn’t any single deal. It’s the pattern.
In the past seven days:
- Microsoft signed a 10-year, 1 million-tonne biochar deal with Liferaft
- Google signed this 200,000-tonne deal with AMP Robotics/Commonwealth Sortation
- Multiple RFPs and procurement rounds are open simultaneously across CDR pathways
Two of the world’s largest companies, with sophisticated procurement teams and sustainability teams that understand lifecycle accounting, both chose biochar in the same week. They’re not doing this for the optics — these are long-term offtake commitments that sit on balance sheets.
Biochar’s appeal to large corporate buyers is real: it’s relatively affordable compared to DAC, has a credible permanence story (hundreds to thousands of years when produced correctly), and benefits from growing standardization through registries like Puro.earth and C2Zero.
The Infrastructure Behind It
AMP Robotics is an interesting choice of partner. The company has raised hundreds of millions in funding for its recycling automation technology — it’s not a pure-play carbon startup. Google is essentially betting that combining existing waste-management infrastructure with biochar conversion creates a more scalable, cost-effective CDR pathway than greenfield approaches.
If that thesis proves out, it points toward a broader model: repurposing or co-locating CDR production with existing industrial processes, rather than building standalone facilities from scratch. (Pulp mills are exploring the same logic with BECCS — more on that in a separate post.)
What to Watch
The 200,000 tonne target by 2030 is ambitious but achievable if the Virginia facility scales as planned. The more interesting question is what comes next: if this project delivers on cost and quality, Google’s internal carbon procurement team will have a validated playbook for scaling further.
For the biochar sector, having Google as a named buyer does more than move volume — it legitimizes the pathway for other corporate buyers who are still sitting on the fence.
Two tech giants. One week. The demand side of the biochar market just got a lot more interesting.
Source: Carbon Credits | ESG Dive | Recycling Magazine