Google just signed one of the largest waste-to-biochar carbon removal deals on record: 200,000 metric tons of CO₂ removal by 2030, powered by a company that uses AI to sort through your garbage.
The partner is AMP, a Colorado-based robotics company whose AI-powered sortation systems can scan thousands of items per minute on conveyor belts of unsorted municipal waste. Compressed air jets then separate organics from recyclables and landfill-bound materials — all without requiring residents to sort their own trash.
From Landfill to Locked Carbon
Here’s the problem AMP is solving: when organic material ends up in a landfill, it decomposes and releases methane — a greenhouse gas 80 times more potent than CO₂ in the near term. Instead of letting that happen, AMP diverts the organics and converts them into biochar through pyrolysis (heating in a low-oxygen environment). The result is a stable carbon material that locks away CO₂ for hundreds of years.
The first major deployment is happening at Virginia’s largest recycling project, serving 1.2 million residents through the Southeastern Public Service Authority. The facility will process around 540,000 tons of waste annually — a number that could grow to 700,000 tons over time, generating hundreds of thousands of carbon credits.
Double Climate Win
What makes this deal notable isn’t just the carbon removal. It’s the methane avoidance built into the same process. By diverting organics from landfills, AMP tackles two greenhouse gases at once — the stored carbon in the biochar and the methane that would have been emitted from decomposition.
Google framed the partnership as building on its earlier work with Vaulted Deep, another company that transforms waste into a carbon removal lever. The pattern is clear: Google is betting on waste streams as feedstock for permanent carbon removal.
The Economics Work
Biochar credits currently trade around $120–150 per ton of CO₂ equivalent — relatively cheap compared to other durable removal methods like direct air capture ($400–600+). AMP expects costs to drop below $100 as the operation scales and replicates across more municipal waste facilities.
The additionality case is straightforward: no regulation requires municipalities to divert organics from landfill this way, and no other revenue stream funds it. The credits are the mechanism that makes the whole thing viable.
The biochar itself won’t sit idle either. Initially it’ll serve as daily landfill cover (reducing odors and methane leakage from existing waste), with plans to eventually use it in concrete and soil amendment.
Why This Matters
The world’s biggest supplier of biochar credits is Exomad in Bolivia, processing sustainable forestry residues. AMP is pioneering something different: municipal solid waste as feedstock. Every city has garbage. Not every city has forestry residues. If AI-powered sorting can reliably extract organics from mixed waste at scale, the addressable supply of feedstock becomes enormous.
At $100/ton and hundreds of thousands of tons per facility, this starts to look like carbon removal infrastructure that could pencil out without corporate philanthropy — just good waste economics with a carbon bonus.
Sources: Google Blog, Trellis