How Sequoia Is Rebuilding Trust in the Carbon Credit Market with Radical Verification

The Broken Promise of Carbon Offsets

In 2023, a bombshell investigation found that more than 90% of rainforest carbon credits issued by one of the world's largest certification bodies were essentially worthless — "phantom credits" that represented no real atmospheric benefit. Corporations had spent hundreds of millions of dollars on these offsets, stamped their sustainability reports with green checkmarks, and declared net-zero progress. The forest kept burning anyway.

This wasn't a one-off scandal. It was a symptom of a market built on trust where trust was never earned. Registries self-certify. Brokers clip 40% margins while adding zero verification value. And the projects genuinely pulling carbon from the atmosphere — direct air capture facilities, enhanced weathering operations, biochar producers — struggle to command prices that reflect their real cost because buyers can't distinguish them from cheap, low-quality offsets.

The voluntary carbon market has a credibility crisis. And a $2 trillion net-zero economy is betting on it working.

Sequoia was founded to fix this — not by tweaking the existing system, but by rebuilding the carbon credit market on a foundation of radical, continuous, technology-driven verification. Visit them at sequoia-earth.tryartha.com.

What Sequoia Does

Sequoia is a verified carbon credit marketplace with its own proprietary verification stack layered on top of — and often instead of — traditional registry standards. Every project listed on the platform goes through a gauntlet before a single credit is issued:

• Satellite-based monitoring: Multispectral imagery tracks project sites continuously, detecting changes in biomass, land use, and carbon stock with a cadence that human audits could never match.
• Independent field audits: On-the-ground verification from third-party scientists and engineers, not registry-affiliated assessors with financial incentives to approve projects.
• IoT sensor networks: Real-time measurement infrastructure deployed at project sites, feeding live data back to the platform.
• AI-driven permanence scoring: Machine learning models trained on thousands of project outcomes generate probabilistic assessments of how long captured carbon will stay captured — modeled at 100, 500, and 1,000-year horizons.

That last piece is what makes Sequoia genuinely different. The carbon market has always struggled with permanence — a forest offset is worthless if the forest burns in 30 years. Sequoia doesn't just verify that carbon was captured today. It models the probability it stays captured across century-scale timeframes, giving buyers a risk-adjusted view of what they're actually purchasing.

Two Markets, One Platform

Sequoia serves two constituencies that the current carbon market systematically fails.

For Buyers

Corporations carrying net-zero commitments are increasingly exposed. Regulatory scrutiny is rising — the SEC's climate disclosure rules, the EU's Corporate Sustainability Reporting Directive, and incoming greenwashing legislation in multiple jurisdictions all demand defensible offset claims. Buying cheap, poorly-verified credits used to be a PR risk. It's becoming a legal one.

Sequoia gives procurement teams, sustainability officers, and compliance departments something they've never had: a credit with a paper trail. Every Sequoia-listed credit comes with a live data dashboard showing continuous monitoring outputs, audit reports, and a permanence probability score. When a regulator or journalist asks "how do you know this credit is real?", buyers have an answer.

Individual buyers — people who want their personal carbon footprint offset to actually mean something — get the same transparency at any scale.

For Project Developers

The scientists engineering enhanced weathering deployments, the operators running direct air capture facilities, the land stewards managing biochar production — these are the people actually solving the carbon removal problem. And the current market punishes them. Because low-quality forest credits trade at $5/tonne, genuinely transformative removal technologies that cost $200-400/tonne to operate can't find buyers willing to pay the difference.

Sequoia gives these developers access to premium buyers who understand what they're paying for — and why it costs more. Verification is the price discovery mechanism the market has been missing. When buyers can see the difference between a $5 credit and a $300 credit in measurable, defensible terms, the premium projects win on merit.

The Market Opportunity

The voluntary carbon market was valued at approximately $2 billion in 2023 — but projections for what it needs to become to meet global climate targets range from $50 billion to $250 billion by 2050. That's not growth. That's a structural transformation of how the global economy accounts for atmospheric carbon.

The catalysts are already in motion. Regulatory pressure is converting voluntary commitments into compliance obligations across major economies. The Science Based Targets initiative has tightened its guidance on what counts as a credible offset. Institutional investors are scrutinizing corporate sustainability claims with the same rigor they apply to financial statements. The era of cheap, unaccountable carbon credits is ending — not because the market wants it to, but because the legal and reputational cost of phantom offsets is becoming intolerable.

Into this inflection point steps Sequoia — positioned not as a cleanup crew for a broken market, but as the infrastructure layer for the credible carbon economy that must emerge. The platform's take rate model — replacing broker margins with transparent, value-justified platform fees — means it scales alongside market growth without the conflict-of-interest problem that currently poisons the intermediary layer.

Why Verification Technology Makes This Possible Now

Sequoia's model would have been impossible five years ago. Three technology curves converging make it viable today:

Satellite resolution and cadence: Commercial satellite constellations now offer sub-meter resolution imagery at revisit rates measured in hours, not months. Continuous monitoring of project sites — detecting deforestation events, land use changes, and biomass fluctuations — is operationally feasible at scale.

IoT cost curves: The cost of deploying sensor networks at remote project sites has dropped dramatically. Soil carbon sensors, gas flux monitors, and environmental measurement hardware that cost tens of thousands of dollars per deployment now cost hundreds.

Machine learning on climate data: Large datasets of historical project outcomes, combined with modern ML architectures, can now generate meaningful permanence risk predictions that would have required armies of climate scientists to approximate manually a decade ago.

The convergence of these three curves is what turns Sequoia's vision from an ambitious idea into an executable platform.

Built with AI, Built to Scale

Sequoia was built on Artha, an AI-native platform that takes a company from concept to live product in a fraction of the time traditional development requires. The platform's ability to rapidly instantiate complex marketplace infrastructure — dual-sided onboarding, verification workflow management, data dashboards, and credit issuance pipelines — meant Sequoia could focus engineering attention on its core differentiator: the verification stack itself.

Building on an AI-first foundation also means Sequoia's ML permanence modeling is woven into the platform architecture from day one, not bolted on as an afterthought. The data pipeline from satellite feeds and IoT sensors flows directly into the buyer-facing transparency dashboards, creating a real-time connection between measurement and market that the carbon credit industry has never had.

"The climate needs a carbon market that works. Not one built on hope and good intentions, but one built on measurement, transparency, and accountability." — Sequoia mission

What's Next for Sequoia

The immediate roadmap centers on depth before breadth — onboarding a curated set of verified high-quality removal projects across direct air capture, enhanced weathering, and biochar, and building the buyer relationships that establish pricing benchmarks for what verified credits should cost. Getting the premium tier right creates the credibility to expand.

Longer term, the verification infrastructure Sequoia is building has applications beyond its own marketplace. Carbon accounting for corporate supply chains, verification services for compliance markets, and data licensing to financial institutions modeling climate risk exposure are all natural extensions of a platform that has built genuine measurement capability at scale.

The regulatory tailwind is also just beginning to blow. As greenwashing legislation tightens globally, the question for every corporate sustainability team shifts from "did we buy offsets?" to "can we prove our offsets are real?" Sequoia is building the answer to that question into every credit it issues.

The carbon market that the climate actually needs — rigorous, transparent, and accountable — is being built. And Sequoia is building it.

Build Your Company on Artha

Sequoia went from a mission statement to a functioning marketplace by leveraging Artha's AI-powered company-building platform. If you have a vision for a company — in climate tech, fintech, marketplace infrastructure, or anywhere else — Artha can help you bring it to life.

Start building at artha.run — turn your idea into a company with a single prompt.