Reinventing Cement: The Breakthrough That Could Cut 8% of Global Emissions with Greg Williams

In this episode of Hardware to Save a Planet, host Dylan Garrett talks with Greg Williams, VP of Product at Sublime Systems, about their groundbreaking low-carbon cement. They discuss how Sublime’s electrochemical process eliminates fossil fuel kilns and limestone-derived emissions, tackling 8% of global CO2 output. Greg shares insights on scaling their technology, industry partnerships, and the path to making sustainable cement the new standard.

What you’ll learn:

Greg Williams is the VP of Product at Sublime Systems and an accomplished product leader with over 15 years of experience driving hardware and software innovation across startups and public companies. Now focused on climate solutions, he brings a multidisciplinary approach to problem-solving, rapid learning, and clear communication. Greg excels at identifying market opportunities, as demonstrated in his leadership at a robotics AI startup, where he spearheaded a strategic pivot that led to a successful acquisition. Passionate about mentoring and impact-driven innovation, he is dedicated to developing technologies that address the climate crisis.

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Previous guests include: Peter Reinhardt of Charm Industrial, Carlos Araque of Quaise, Noah McQueen of Heirloom, Areeb Malik of Glacier, Jeff Satwicz of Bigbelly, Abe Schneider of Natel Energy, Insiya Jafferjee of Shellworks, Paul Gross of Remora, Erika Boeing of Accelerate Wind and Daniel Betts of Blue Frontier.

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