Unbound Directory: 
The 'Yellow Pages' of CDR

My career is dedicated to a single thesis: restoring trust in climate solutions requires a fundamental architectural shift. The static, fragmented systems of the past are not realizing their full potential. We must build a dynamic, "tree-centric" digital MRV to meet the challenge. After 24 years as a lead scientist in the USDA Forest Service, culminating as the National Program Lead for Carbon Quantification Sciences, I have seen this failure from the inside. I was the technical strategist tapped to lead the federal response to our most urgent policy crises, requiring me to brief White House offices and respond to Congress on one hard truth: the government cannot solve this 'trust gap' alone. The national strategy I helped architect is a "hybrid public-private ecosystem." The vision is a "GHG Digital Twin" for our natural resources. I joined CTrees to build the innovative, technology-driven side of that hybrid model. As Director of US Forest Science and Policy @ CTrees, I am in a unique position to accelerate the application of science at scale. My mission is to build the platform that translates state-of-the-art AI, field observations, and high-resolution remote sensing into trusted, verifiable, and scalable tools. This work moves beyond just voluntary carbon markets. It is about building the core data infrastructure to de-risk investment and empower all stewards, from federal agencies to private landowners, in the full spectrum of natural climate solutions, including wildfire resilience, biodiversity, and sustainable supply chains. I have spent a career building the "gold standard" public data foundation. I am now at CTrees to build the technology that finally makes that data actionable.

I’m the Business Development Manager at Czero, an advanced engineering services and contract R&D firm on a mission to make energy cleaner across all sources and uses. I work with carbon capture and utilization teams and innovators across energy and industrial markets to translate ambitious technical roadmaps into executable programs. Czero’s engineers partner as an extension of client teams, combining mechanical design, controls, and system modeling to move from concept to validated prototypes with a “measure twice, cut once” approach. I’m excited by community-building and the operator-to-operator conversations that help climate hardware grow faster.

Adam Ornstein is the founder and CEO of Fiora Mara, a climate tech company focused on permanent, low-cost carbon removal in the open ocean. His work centers on designing scalable systems that turn the ocean’s vast vertical water column into a reliable carbon sink, using fast-growing marine biomass. Adam leads the company’s carbon strategy, field experiments, technology, and partnerships across New York’s climate innovation network, advancing approaches aimed at gigaton-scale impact by 2033. Before Fiora Mara, he spent more than a decade scaling products and teams in health and data technology, including driving Everyday Health Professional's growth from 380,000 to over three million users and also leading innovation at companies like Thomson Reuters and WebMD. He’s a past ClimateBase Fellow, a Climate Reality Leader, and a builder committed to solving carbon at planetary scale.

As Vice President of Business Development at Circulus Air, my focus is on driving commercial strategy and top-line growth for a diverse portfolio of carbon capture and air management solutions. My role includes leading go-to-market execution, fostering partnerships, structuring complex commercial agreements, and translating market and policy dynamics into scalable growth opportunities.

Accomplished sustainability executive focused on social license, community impact and climate solutions in addressing environmental injustice from orphaned mine waste. Founder of BAIE Minerals and Atlantic Carbon Mineral Hub, transforming mine waste into a world-scale decarbonized mineral resource and carbon removal solution.

Cleantech and circular economy developer focused on addressing environmental injustice through mine waste reclamation and repurposing technologies. Co-founder of BAIE Minerals and the ATLANTIC CARBON MINERAL HUB, Transforming mine waste into a world-scale decarbonized mineral resource and durable carbon removal solutions.

Arnaud Bret is the former CEO of Reforest'Action, a Paris-based company dedicated to large-scale regeneration of terrestrial ecosystems. By leveraging field experience, local communities, science, and technology, Reforest'Action aims to address global environmental challenges. With over 30 years of experience in leading tech companies, Arnaud is a seasoned global executive in B2B and B2C SaaS services, mobile communications, consumer electronics, and disruptive technologies. During his four years at Amazon, he led the EMEA business development team in the telecom sector. Prior to that, at IDEMIA, he managed the EMEA region for their mobile telco vertical. At BlackBerry, Arnaud was instrumental in driving international expansion across several European markets, including Benelux, Switzerland, Austria, Israel, and Russia. Arnaud's international experience is extensive, having lived and worked in France, the US, the Netherlands, and the UK. He holds an engineering degree from Telecom SudParis and is an alumnus of the International Executive Program at INSEAD.