About Us

We’re a group of creative thinkers who have built a business to change the world.

Project Butterfly 2 (PB2) didn’t begin as an app or a game — it began as a question.
What if the same tools that guide global investment decisions could also help households, schools, and communities prepare for a changing climate?

That question traces back more than a decade, to a collaboration between energy entrepreneur and systems thinker Thomas H. Stoner Jr., data scientist Mark Labovitz, PhD, and others. Together, they developed the original Project Butterfly Financial Calculator (PBFC), one of the earliest attempts to link climate scenarios to financial outcomes using systems dynamics.

The first Project Butterfly — launched in the late 2000s — was born from the conviction that the science of climate economics shouldn’t stay locked in research papers or corporate analytics. Its purpose was to translate complexity into understanding, to show that the economy, the environment, and human behavior are part of the same system.

The PBFC proved that idea worked. It modeled how investments in clean energy and efficiency could reduce risk and increase returns, demonstrating that sustainability and profitability were not opposites but two sides of the same coin. The results were powerful enough to inspire Stoner’s 2014 book, Small Change, Big Gains, which argued that the same financial logic driving investors could help everyday people make better choices for the planet and their wallets.

That early work led to a licensing partnership with Entelligent, a climate-finance analytics firm co-founded by members of the Project Butterfly team. Entelligent used the PBFC as the foundation for two groundbreaking, patented climate risk metrics — the E-Score and T-Risk Score — later adopted by major financial institutions such as Société Générale, Bank of Montreal, and Bank of America. Those tools brought climate modeling into mainstream finance, helping asset managers and insurers quantify exposure to environmental risk across billions in managed assets.

But even as the data reached Wall Street, a gap remained.
The people most affected by climate change — households, educators, local governments — were still left out of the equation. They were expected to adapt without access to the same quality of insight that investors used daily.

That realization sparked Project Butterfly 2.

PB2 was created to bring the science back to the people — to make the predictive intelligence once reserved for markets accessible to everyone. Instead of focusing on portfolio performance, PB2 focuses on resilience performance: how well households, neighborhoods, and cities can prepare for and thrive amid environmental and economic change.

At its core, PB2 carries the same DNA as the original Project Butterfly: systems thinking, financial realism, and a belief in the power of modeling to drive smarter decisions. But its mission has evolved — from investment modeling to social empowerment, from spreadsheets to storytelling, from theory to participation.

Today, the PBFC’s legacy lives on inside PB2’s proprietary Integrated Assessment Model (IAM) — the engine that powers the PB2 Score and underpins both the PB2 App and the Climate Collapse Game. It’s the same logic, scaled down to human experience: a bridge between global systems and local action, between simulation and real life.

The name Project Butterfly still carries its original meaning — the idea that small changes, when connected across a system, can create global effects. PB2 is that idea brought to life — a platform that turns awareness into measurable action and ensures that every person, family, and community has the tools to shape the future they share.

The team behind the butterfly

Our People

Thomas H. Stoner, Jr.

Co-Founder & Executive Chair

Economist, entrepreneur, and author of Small Change, Big Gains. Tom co-founded Entelligent, creator of the E-Score climate-risk analytics platform used by major financial institutions. A pioneer in sustainable finance, he has led multiple clean-energy ventures and helped shape the original Project Butterfly model linking climate, energy, and economics. At PB2, he provides strategic leadership, investor engagement, and mission alignment. A sailor who called the mountains home, Tom has traveled the world with his wife and children, studying history, culture, and art. His greatest joy comes from watching his children grow, create, and make their own mark on the world.

Mark L. Labovitz, PhD

Co-Founder & Chief Systems Architect

Data scientist, systems-dynamics modeler, and lecturer at UC Berkeley’s School of Information. Mark co-developed the Project Butterfly Financial Calculator (PBFC), which underpins PB2’s proprietary Integrated Assessment Model (IAM). With decades of experience in quantitative modeling and risk analysis, he leads the design of the PB2 Score, ensuring its rigor, transparency, and behavioral logic. Beyond his work in modeling and data science, Mark finds joy in teaching, sharing music with friends, and traveling with his wife, Susan — a reminder that learning never stops, whether in classrooms or on the road.

Leah Labovitz

Director of Design & Communications

Strategist and storyteller dedicated to accessibility, inclusion, and environmental advocacy. Leah shapes PB2’s brand, storytelling, and user experience across the Resilience App and Climate Collapse Game. Drawing from her background in political mobilization, public engagement, and ocean conservation, she ensures PB2’s technology communicates clearly, connects emotionally, and inspires action. Leah is an avid scuba diver and traveler who finds calm beneath the surface, laughter on land, and meaning in the shared passions that connect us across our blue-green world.

Laurie Greennwood

Head of Education Initiatives

Operations and communications leader with experience scaling sustainability and tech ventures. A former EVP at Entelligent, Laurie leads PB2’s education partnerships and curriculum initiatives, translating resilience science into practical learning for schools, universities, and communities. She anchors organizational alignment and stakeholder collaboration as PB2 grows. Laurie is a devoted gardener and proud grandmother who finds joy in things that grow — gardens, ideas, and the people she loves most.

Mike Dorband

Director of Simulation & Technical Integration

Game designer and systems engineer connecting PB2’s modeling and simulation technologies. Mike manages PB2’s collaboration with Ventana Systems and coordinates technical integration with NVIDIA Earth-2 for large-scale simulation performance. Trained in game design and production at DePaul University, he bridges creative systems thinking with high-performance computing to bring PB2’s virtual experiences to life. Outside of work, Mike enjoys hiking, gaming with friends, and dreaming up new ways to turn creativity into play — combining play and curiosity to better understand what drives the people around him.